Go faster by changing sprockets!

Will the bike go faster? By how much? Easy to follow step-by-step calculation that works for bicycles, motorcycles, ATV, anything with roller chain and sprockets on and it even works with gears like in a transmission.
A faster transmission ratio will in turn make your bike equally slower to accelerate. Watch and find out why.
Error: at 20:01 I entered 0.4/0.3 to get 33%. I should have entered 0.4/0.33 to get 21%. I apologize. The correct amount is 21% for that sprocket combination.

[@DNiits]

(2) So, by dividing 14 by 52 (14/52) you get 0.269 and by dividing 14 by 46 (14/46) you get 0.304. If you calculate the percentage difference between the two (0.304/0.269), you end up with a 13% difference. 13% of 150mph is 19.5mph (150*0.13=19.5). Your new top speed will now be 169.5mph with the new sprocket set up! (150+19.5=169.5) Hope that helps =) (see first part of this text below)

[@bryansmith943]

😅plp00lpp0ppplp0009o9o9o9op0lplk79p0plppllpll6ullp0llp7j7😢iul0lpllllllllllil😢ki😢kl8i8illplk😢llp0ll7ill😅p😅😮😮

[@theoverengineer]

Thanks for the feedback, I`m not on facebook. Fastest is: just post your questions here. I`m in-an-out-of classes, and busy, but can see and answer messages here fast.

[@slicaltimistic1]

That was excellent configuration dude. Getting better understanding by getting more information. So spending more time explaining is well worth it. Keep up the good work.

[@shawngoldsberry747]

Hey you did an excellent job explaining this to people. It's amazing how many lightbulbs you turned on. On the other hand it's disgusting how education system didn't turn these light bulbs on.

[@Tushad1985]

This is brilliant. Finally understood how this works! Thanks for taking the time.

[@motorizedbicyclenation53cu90]

Weird shit is I’ve had some set ups go faster with a bigger sprocket like a centrifugal clutch or engine that just needed a little more so it could hit its max rpm but hell it happens sometimes lol depends on ya set up usually smaller is faster but weaker and larger is more torque

[@Richard-yq2mm]

I tried this way back in 1976 on a new Kawasaki KZ900 LTD (I'M OLD AS DIRT). After the 500 mi. break in, installed all kinds of goodies. New seat, riser with pull back handlebars, a 16" hog tire & wheel and 4 into 2 drag pipes (took the baffles out) SWEET sound. Adjusted the carbs & adjusted needle valves (more fuel). Last thing I went up 2 teeth on the drive sprocket. To adjust for smaller diameter back tire and raise the top MPH. This grandfather of superbikes now did over 140+. Way back then that was quick, fast, loud and King of speed for a naturally aspirated bike. Then in 1981 I bought a 1976 sportster XLCH and had a machine shop make it about as fast as the Kawa. But that's another story. Thanks for reading my long winded comment.

[@jbroadbelt6]

I read this comment but it took me 3 years

[@anthraxvapor5575]

Clearer than broad daylight explaination. thanks mate.

[@ViceVersaMusik1]

Awsomeness! ! ! Great video man, I was just lookin for a video on this subject dude.. Great Work Dude!!!

[@kennybruno7584]

Loved the video! Great basic theory of how the different sprocket ratios work. The math at the end was off by 0.03 when he divided by 0.30. He should have divided by 0.33 using the same number as he used earlier. As a result it would have only increased 21% instead of 33%. I was scratching my head at the end with the math portion which is why I decided to clarify how he got to that conclusion for anyone else wondering the same thing. No biggie...he still made his point very clearly, thank you!

[@theoverengineer]

Kenny Bruno Good catch. The correct figures are inserted in speech bubbles, only showing when viewed from a desktop/laptop.

[@jordanhoyle577]

you did good because i now understand thanks

[@Joms7]

same here, thanks. from philippines.

[@ghara8567]

My man what about the RPMs you making the engine rev faster but in theory you're really not going faster that was the RPMs you were doing it's going to be revving at 6,000 RPMs I think you got a little bit mixed up there watch some other videos

[@jordanhoyle577]

@@ghara8567 who?

[@ghara8567]

More torque takes off faster less RPMs in the short end but you lose speed in the top end I think that's what you were trying to say

[@jordanhoyle577]

@@ghara8567 where did I say that? 🤔

[@awizardalso]

Years ago, I rode a 350CB Honda back and forth 40 miles from Millersburg to Canton, OH 4 or 5 times a week. I dropped the back sprocket from 36 to 30 teeth, since the bike wasn't made to cruise at 60mph. The only problem is that the bike was no longer suitable for 'city' riding. It was like starting out in 'second' gear. Increasing the rear wheel sprocket tooth number will increase acceleration but decrease maximum speed due to to engine RPM limits. Conversely, decreasing the rear wheel tooth number may increase cruising speed at a particular engine RPM, but it decreases acceleration and also decreases clutch life! Still, I appreciate your video.

[@ghostduster1]

Thank you for the thorough explanation. I couldn't make sense of the explanations I got on a few cycling websites.

[@777Guitarmaster]

One of the best explanation, I ' very ever seen.Thank you very much.! Great video!

[@fitz235]

You're spending way too much time explaining very basic math, But thank you for taking your time to make this video. I appreciate anyone who shares knowledge.

[@MisterFuturtastic]

There are some people who are terrible at math like myself though who much appreciate the simplified version! :)

[@fitz235]

Sorry about my selfish comment :)MisterFuturtastic

[@theoverengineer]

***** Thanks for watching guys. Yes, in any case, I don`t want to insult anyone`s intelligence, I just make basic videos and I list all the steps for a task, so others can try new things and save or explore.

[@fitz235]

***** theoverengineer Yes, thanks Dylan and thank you OverEng. I'm sorry if I came off judgmental or critical. I really appreciate people like OverEng to educate others and Dylan for recognizing and speaking up for OverEng.

[@theoverengineer]

SaigonIntel Thanks for watching, no worries.

[@dakotaross2347]

Great job I totally understand the way my sprockets work on my bike now

[@tixxx09]

Amazing video brother...got me to understand 100%. I was lookin to mess with my sprockets but now idk thanks again

[@thehoneybadger8089]

Dividing the DRIVEN by the DRIVE will give the gear ratio, which, for most of us who are mechanically inclined, is more understandable. 45/15->3:1 and 42/14->3:1, 48/15->3.2:1, 42/15->2.8:1, 40/15->2.67:1, asf. The lower the ratio, the higher the speed, within the power limits of the engine, of course. Remember, it is normally easier to change the DRIVE sprocket and usually allows use of the same chain. However, going smaller causes a tighter turn which leads to more stress on the chain. Going bigger may cause clearance problems with the engine case, especially if the chain is allowed to become a little loose.

[@haggeoromero]

very good job explaining this concept.

[@theoverengineer]

Thank you.

[@gilbertlibang299]

Thanks mate!!-A rider from Malaysia

[@ironhorsegladiator5034]

Wonderful, you make a great teacher. Thanks

[@footballkicker70]

Probably the most useful video I have ever watched. Really explained everything on my level. Well done.

[@theoverengineer]

Cheers!

[@theoverengineer]

Perfect math. Can also (0.304/0.269) = 1.13, leave the answer on the calculator`s display, then x 150 = 169.51 That`s your calculated final theory top speed. Wind resistance over 120 mph will eat much of that increase away.

[@SsaliGeoffrey-ct8bk]

You have taught me how to calculate I changed the sprocket the machine is faster.thank you.

[@04enduro]

why so many people still not understand and asking simple questions? READ THIS AND THINK ABOUT IT: - Bigger drive/engine sprocket = increase top speed. - Bigger driven/wheel sprocket = lower top speed. NOW THINK ABOUT THIS: - Whenever you increase speed you LOSE engine power and acceleration - Whenever you lower top speed you have MORE power and better acceleration. - If you want exact calculations on how you can increase top speed or power to your vehicle, you really have to watch the whole video and use the same formula he uses, if you don't understand, rewind the video and listen to him carefully. OK one more time: 14/50 is my standard. *Changing one sprocket at a time: 15/50 will be more top speed BUT less acceleration. (+1 to drive sprocket) 14/52 will be less top speed BUT better acceleration. (+2 to driven sprocket) *Changing both sprockets at the same time: 13/48 will BOTH lower top speed (-1 drive sprocket) BUT also increase top speed (-2 driven sprocket)...(from standard remember!). So that means changing both in the same way (less teeth OR more teeth for BOTH) can change the top speed and acceleration, it just depends how many teeth you change on each to how much change it makes. This means: when changing both at the same time; -1 drive/-1 driven is less of a change than -1 drive/+1 driven. +1/+1 is less of a change than +1/-1. Refer to the previous details to see which sprocket does what... -Technical info.: As the video shows, you cannot physically change your engine output Horsepower, it just effects how efficient the engine is at driving the wheel... more top speed = less engine efficiency, less top speed = better engine efficiency.

[@theoverengineer]

04enduro Well said, thanks!Here are some ideas why people ask simple looking questions: (there`s nothing wrong with anybody) - Showing once or watching once does not translate into mastery of anything or does not enable anybody to function at a self-sufficient level of a skill (any skill, eg hanging a door, loading a magazine, lube clutch cable) - Inverse proportions are not instinctive. Direct proportions are instinctive. (Bigger engine = more weight) In direct proportion the words indicating change (adjectives) are both the same, positive (bigger, more). Could be negative too, but both, again. (Smaller engine, lighter bike). Inverse proportions are tricky (bigger rear sprocket = less speed) because the adjectives are opposites. On top of this, we have a mix of direct and inverse relations in the same topic. In changing sprockets some relations are direct (bigger front = more speed), and some relations are inverse so patterns become hard to follow. - Most people don`t know how learn or to use a textbook: read/watch - start skill - read/watch on - continue with skill - read/watch more - continue with skill - finish, check back & repeat with another set of numbers - Learning takes time: people first observe bike performance fine detail, then think up some possible solutions, then search for answers, then make some sense of the answers/solutions found. Curiosity moves all this, it`s the best and biggest thing that has to happen for learning to take place. - The skill of comparing final drive combinations in percentages is not explained. Comparing drive ratios as decimals is one thing, math with % is another skill, building the 2 together is skipped over around 17:25 - 18:30 - The skill of calculating speed gains/losses in km/h or mph is not explained, just implied in 2 x 11 sec around 18:45 & 20:20 The short math is: say bike tops out at 160km/h, new final drive provides a 5.4% gain: new theory speed is 160 x 1.054 = 168.64km/h. If people make the effort of being curious, want to learn something and ask questions, I make the effort and answer them. Over and over. The same questions. I don`t mind. Learning basic new skills needs frequent checks anyhow, plus it`s new people every time. I also don`t mind viewers helping other viewers with offering re-phrased versions. For learning to happen, if a certain explanation is not fully meaningful, alternative or different explanations maywork out. Usually, a learner gets something new out of every different approach. With one single explanation it is never possible to capture complex things, plus there are different learning styles, too. Thanks for sharing your summary and watching!

[@04enduro]

theoverengineer You're a very humble and considerate person and made some good points in that reply that I agree with. It personally seemed, to me, as though some people never even pressed play on the video though, this is why I wanted to make a summary. I just want to state that my intention wasn't to be demeaning or mean to anyone, I just wanted to make a bold comment that is easy to read so hopefully it could answer some questions. Great video btw!

[@mohammadnisaar2179]

Hey 04enduro,theoverengineer. The statement of more top speed less efficiency is wrong,as you know bigger drive sprocket more speed at the same rpm compared to the small drive sprocket...at the same rpm more speed means more distance you are covering with same fuel consumption... More distance with same fuel consumption means more efficiency I assume you should have worked that much out for yourself funny enough and also upgrading bigger drive sprocket is not always the case because it is limited by the space provides by the manufacturer while you can relatively step down the driven sprocket for the same results...but top speed is not the only solution for higher efficiency we also need enough torque to maintain it that's what the aim of the manufacturer's is...to maintain good speed with adequate torque for best efficiency...We can always tweek and play with these as per our satisfaction but at the end of the day...sharing knowledge upgrades it...no hard feeling lads...I love and respect the way you question to know the things instead of just blindly believing it...do consider writing back...peace✌

[@waspbulgasari4498]

theoverengineer well said, you're too kind of a person! now you can be a teacher, jwk bur here I ask this, can you still do this video(again) with the engine dispacement coefficient on the calculations?

[@waheedaazize7911]

If only my all my math teacher were like you...math would have been my favorite subject

[@junaidkamal]

:D

[@anas_moto]

The best ever video to explain sprocket ratios 👍

[@theoverengineer]

Glad you think so!

[@PoppyMod]

Thanks for a great explanation. I've been search for something like this.

[@bruddak1143]

4:58 LooL damn trucks. Nice video, thanks

[@louf7178]

Brudda K LOL...Jake Brake.

[@theoverengineer]

Thanks, good on you, bro. Never stop being curious, forget deadbeat teachers.

[@danfuerthgillis4483]

A big tip is cross chain on purpose by setting up the front derailleur off set by adjusting the front derailleur mount twisting it to allow the 3rd ring up front ( 3 ring system) to work with the 24 or 32 tooth cogs on the back. This setup allow for proper cross chaining with zero issues.

[@myriad860]

why does this channel not have million of subs? great vid very educational thank you

[@theoverengineer]

Thanks for watching. Yeah, I don`t have the corporate backing, ... and no cute kittens on the channel.

[@theoverengineer]

Exactly the effect. Gain top speed will always lose torque and acceleration. Good stuff.

[@chachasheeda1931]

What if we only change sprocket From 14 t front and 41 t back To 18 t front and 30/28 t back Why it slows down in 4th gear.. what is the solution to that . Imean without alteration..

[@Justfun-gg8xi]

@@chachasheeda1931 That 18t and 30t will give you a lot of Acceleration Loss. but still that Topspeed will be almost Same Or May decrease Greatly Due Road which Road type is . if that On Drag race that won't Give you change on winning and Also in track. I wouldn't recommend That kind of Gearing that make your motorcycle Downgrade For me. I would recommend Back to stock. But Let me know what is your purpose changing. If your planning Faster. Choose Fastest acceleration First It will big Help if Your Getting a Race and Next is Top speed. if you're Street Acceleration still practical due helping In Overtaking. Slow overtaking is Dangerous. Bonus:Believe in Jesus that He will paid Your Sins and He will raise you from the Dead. And the Father also raise him from the dead so will you be Save. Benifits of Eternal Life no End. If we are still alive You can Worship God You Get Guidance as long you listen. God will never for leave us Even we have Troubles he will help us

[@chachasheeda1931]

@@Justfun-gg8xi lots of love broo.❤️❤️❤️❤️❤️🥰🥰🥰🥰❣️❣️❣️😍😍😍😍😍😍😍😍 My main purpose is a challenge... Basically... But there is a difference that i want to race with alterationbike and win on genuine bike with sporket or minor alterations .. i mwan nothing with engine (pistion head cylinder etc) Whil the oppobike is alter... Has bigger piston head cylinder bore clutch box etc... Now i tell tou that genuine bike top speed is etc 90 95 while on somebokes of same company it is 110 115 ... While the opponent biike even after being alterd so deeply gives 110 115 120 max 125 ! And their alter bike engine life is approx three months... While genuine you have life in years.. I want them to show that company is not a fool.. while you can get more speed with such foolish engine modification... The moderately acceleration is acceptable but i want top speed. To be more.. as 130 With no engine modification .. onle intake fuel of high grade and sprocket i want to achieve that..

[@Justfun-gg8xi]

@@chachasheeda1931 if legal race purpose. You Should improve your Aerodynamics. Also Aerodynamics are huge impact. I would suggest stock Sprocket. Huge change on sprocket affect your rpm. Low gearing More rpm more acceleration and Reduce topspeed but fastest Topspeed reach which is more practical. Than Long gear which takes time to Reach Top speed. Also Weight Matters but don't Try Make your Wheels Thin If your Using at Street Is Dangerous only use in Drag legally but not also i track. Also Try to remove your ecu limit or Cdi Limit if you have ecu Let it tune and Dyno Tune If you have cdi let it Tune and dyno if possible for your Model and buy after Market so that i can be tune. If You planing also in streets Make use you have abs Brake for more safe Remember More power more responsible. Bonus: Believe in Jesus that He will paid Your Sins and He will raise you from the Dead. And the Father also raise him from the dead so will you be Save. Benifits of Eternal Life no End. If we are still alive You can Worship God You Get Guidance as long you listen. God will never for leave us Even we have Troubles he will help us after dead Reunited with God No pain You will share God wealth You will Rule with Him

[@chachasheeda1931]

@@Justfun-gg8xi what if i change the the size.. i mean increase it .. on same bike.. And use hioctane fuel.. and high tyre pressure.. ?? And how can i alter cdi ?? No alter is available right now in Market?

[@Birdie_MH_]

20:05 The 17/42 gearing is actually a 21% gain from the original 15/45

[@markabrams7936]

For what cc would this be suitable for, really need to know. Plss!!!

[@Birdie_MH_]

Mark Abrams Any cc really, from a 100cc dirt bike to a 1300cc hayabusa. It just depends how you want the motor to perform, go bigger for more torque off the line or out of corners, go smaller for more top end and straight line speed

[@nyndmrts]

No need for rocket science, just ride a bicycle with gears and understand yourself, by witnessing how much effort you need in each gear. How easily you can accelerate with smaller front gears and how fast you can go, after it try shifting gears. Best to understand the logic...

[@aymanabantas2309]

is 17/36 good for a motorcycle 250cc?

[@nyndmrts]

@@aymanabantas2309 her motorun dislisi ayri be abi. 250 cc demekle olmaz.

[@nneilwwaters9990]

Great video, who would have thought primary school maths would have come in handy!

[@joentje292]

it is funny that you use such low numbers, but it is a very good, clear and handy way of explaining! i'd lose it if you used sprockets like 11 to 53 xD Thanks for explaining everything so clearly! i'll consiter getting the prockets done now when i get my moped lisence!

[@carlitosASJ]

thanks man ...i loved this...i was mostly confused with the acceleration of my bike and did all the math myself a few months back but was still a little confused but i came to the conclusion that...ppl that made these machines know what they are doing so forget my theory their is the best in both speed and acceleration so why change it

[@ARBAAL1522]

I am wondering what Jack Norris , would do.?

[@daveybrunalli5207]

he would kick the teeth out of the sprocket's mouth

[@rodrigoruffa7460]

He would ask his brother Chuck what to do, for sure...

[@robertheinkel6225]

I put a one tooth larger front sprocket on my Honda 350, years ago. It lowered the RPMs at road speed, but was harder to launch off the line.

[@cguinsad]

this video knocked a lot of sense out of me. thanks man!

[@TroyaE117]

Guys, be careful about altering final drive ratios. The manufacturer has put a lot of time in to selecting them. That does not make them all perfect, but they are likely to be a good compromise between torque at the back wheel and top speed. If you change the gearing you will trade torque for speed.

[@brufnus]

+TroyaE117 Indeed, but for certain uses it makes perfectly sense to do it. The factory compromise is largely to satisfy most drivers with an acceptable tradeoff between top speed and acceleration. Street racers will benefit from a higher ratio, whereas tourers might like to reduce the engine speed (which I've done myself on my GSX 1100 EF with 16/40 teeth instead of 15/42 standard. I love cruising like that, with only some 3.000 rpm at 90 km/h. :-D

[@thegatesofsleep]

TroyaE117 I agree with you Troya, however for riders like me it makes total sense. I'm thinking about putting a smaller rear sprocket on my ZX1000R because I'm a BRAND NEW rider and I 100% don't need all the acceleration/torque that the factory sprocket produces. When I'm a better rider I will put it back to stock, or even trade some top end for more torque.

[@brufnus]

It does come at a price though, if you increase the ratio later on. You'll have to rev the engine faster at any given speed (that's why I went the other way like you want to initially - I have plenty of torque despite of this, and I love cruising with less engine rpm at any given speed). c",) But then again - my GSX 1100 engine enjoys almost full torque (about 10.7 kgm) at less than 3.000 rpm.

[@babymetalfansmetalfans9615]

+brufnus great!!

[@fixitrippitreckit6963]

TroyaE117 yes finally someone who under stands

[@maungsacca]

Maybe you should use the term "top speed" instead of faster. Faster implies acceleration which actually goes down if you increase top speed gearing. So which is faster a quicker acceleration or a higher theoretical top speed? For most motorcycles they are set up for a top speed. But most of the time you never use that. So to accelerate faster you reduce the front one tooth or up the rear 2 teeth. Each adjustment loses top end speed. eg. 1 tooth on the front of my cbr600rr changes top from 260 to 240 kmh. But how often do i drive 260?

[@brufnus]

I disagree. Going faster = moving at at higher speed, not implying anything about acceleration.

[@drgrunn174]

maungsacca it depends; if your bike is with bad ratio you will get on highway speed on 6k rpm ... by increasing the front gear (increasing the ratio) you may drive at the same speed with 5k rpm, which will give you better mpg (better fuel economy) ... it really depends where and how are you riding. In the city the opposite will be better, as when in stuck traffic the lowest possible speed is needed, and also I never shift on 6th ... so in city I may decrease the ratio and will start with lower speed -> 'clutch economy' and also can shift to higher gear and again fuel economy.

[@markcayton6712]

The terms "fast" and "quick" are two different things. FAST is regarding a steady speed. QUICK is regarding acceleration. Changing your gearing can make you faster but not as quick, or it can make you quicker but not as fast.

[@acekryger2471]

This is sooo well explained !! Thank you soo much!!

[@theoverengineer]

Thank for your comment, very nice. I`m also working on a new title, continuing this topic of sprockets. In it I do math with the transmission ratios, wheel size and relate to top speed. My math is sorted out, just working on the visuals. Sound effects will be of random neighborhood kind. Cheers.

[@WisdomInExperience]

Hey I think its the diameter of the sproket determines the drive ratio than the number of teeth ? Right

[@theoverengineer]

+Shriram Karpur The pitch diameter does, it results in pitch circumference, which is then divided by a whole number, the teeth. So we might just forget about (pi) and pitch radius and work with a straight whole number. Can`t do that with pulleys, sheaves and wheels.

[@E46TY]

Shivo hum teeth not diameter🤦🏽‍♂️

[@genosmith8852]

Both right you can have two 48 Tooth but one a #25 C/L and one #60 C/L both roller chain connecting links same ratios in relationship to chain size

[@danieyzrstudio6420]

Small for great pickup. Big for great topspeed

[@sdqsdq6274]

lol

[@balentincamargo5248]

x ShaRkz. Thanks

[@slicaltimistic1]

Excellent Job doing these Calculation. That is exactly why I was doing these configuration. To get the speed that I wanted.

[@theoverengineer]

Thanks for watching.

[@juan2699r]

On bicycles, I the front sprocket suppose to be bigger than the back sprocket and nice video. Keep it up.

[@joel9526]

I will make it simple for you. A bigger rear sprocket will get you off the line quicker. a smaller rear sprocket will get you off the line slower but will be quicker at top end.

[@mbasinfo2551]

+Sir. Sir Wrong, sorry guys - what sort of engineers do we have here?? Engine power does not change as a result of gear ratio alteration and it is that (engine kW vs all up weight AUW; kg) which determines acceleration rate, until near to top speed, where drag (e.g. air friction) becomes the limiting factor - ultimately absorbing all available kW thus acceleration reduces to zero. Top speed is (principally) determined by engine kW vs aerodynamic drag (i.e. frontal area x drag coefficient) and other friction al losses. AUW (kg) has virtually no influence, given sufficient roadway, time and absence of police radar etc, to finally reach top speed! Back to the point - any competent rider will simply change his (or her) gearshift points to compensate higher or lower final drive ratio. However, one thing that does alter when applying a higher final drive ratio is that (the typically 5 or 6) gearbox ratios become effectively spaced further apart. So, what was a snappy close ratio shift might start to feel more like an old 4 speed wide ratio clunker of British origin circa 1950's ;( Hope this helps - just pedal harder boys!! cheers // Steve (aero-engineer, ex-motoGP racer + decades off-road & enduro etc)

[@jacobramos5083]

nope, that's backwards lol

[@theoverengineer]

Sir. Sir is right, nothing`s backwards. May be the fractions, but they don`t come with vectors.

[@antorangejuiceclef8527]

MBAS Info dam !

[@larrymenezes3374]

Hi theoverengineer . I have a 200cc bike. The stock sprocket size is 14/39, I know that if I change to 14/45 I will have an increase in torque and acceleration but will reduce in top speed. Pls guide me what will happen If I change to 17/45? will I have an increase in torque or will I have an increase in top speed? or will I have an increase in both compared to my stock sprockets? According to you instructions... My stock 14/39 sprocket has a drive ratio of 0.35, If I change the driven sprocket to 14/45 it has a drive ratio of 0.31 which I guess means increase in torque but decrease in top speed, I f I change to 17/45 it has a drive ratio of 0.37. So does this mean that my torque and acceleration has decrease and top speed has increase compared to my Stock sprockets?

[@theoverengineer]

larry menezes Good thinking. The 0.37 means that, compared to the 0.35, torque and acceleration drop by 2% and top speed increases by that 2%. In case of the 0.31 compared to the 0.35, torque and acceleration increase by 4% and top speed drops by 4%.

[@abbywendt1988]

do the math he showed you EXACTLY how to figure it out..

[@yessure5291]

www.gearingcommander.com/ see here

[@HORNET6]

Larry Menezes you will just cancel out the decease of rear sprocket gearing.

[@yessure5291]

www.gearingcommander.com/ shows every combination possible.

[@rummanac]

Excellent video with better understanding for new

[@wormlite]

Thank you, this was very helpful and explained well!

[@RedpillPortugal]

Am I the only one thinking about the regular mountain bike sprocket example? Simple does it. The bigger the drive sprocket the slower you go, the smaller(less teeth) in the driven wheel gear the Faster you go

[@theoverengineer]

Actually, the bigger the drive the faster you go

[@damionloya4746]

Your wrong if you put 4 tooth sprocket with a 2 tooth sprocket on the back tire for one turn the tire will turn twice if you put a 22 tooth srocket with ten you will eccelerate faster to 20 miles an hour but you will only go twenty if you did for an for your bike will take off slow as shit but you will your top speed will increase buy how ever fast your crank will turn

[@ilLUZiiVeGaming]

It really has nothing to do with the amount of teeth it more to do with the diameter of the sprockets.

[@theoverengineer]

Correct. It has to do with the pitch diameter of the sprocket, gear, sheave or pulley. Since the teeth are the same size on the bike`s sprockets to fit the 525 chain, math works with the number of teeth, no need for pi and exponents.

[@josevendrell9429]

This was the best explanation an educational on sprockets really needed that thank you very much.

[@theoverengineer]

Glad it was helpful!

[@vasilepopa2212]

A really good explanation mate. Thanks a lot. You really helped!

[@SakibChoudhury]

17 / 42 setup and .40 / .33 equal 1.21 now subtract 1 so it is .21 multiply 100 you get 21% speed gain not 33 % ... but great video though

[@hamzasarfaraz9250]

Exactly

[@swarajs9631]

thats because factory setting is 100% so add on the addition speed gain thats how math work bro

[@albion2742]

It will not go faster if the rider cannot pedal a higher gear ratio, same as a m/cycle top speed will not increase if the engine does not have enough power to pull a high gear, my motor cycle is faster in 5th gear than in 6th gear as the 6 th is like an overdrive.

[@theoverengineer]

Will also not go faster under a fat guy, on a steep hill, on flat tires, if the haystack is too big (India, Africa, ...), on a muddy road after the monsoon, with a worn chain that skips the teeth ... the list can go on forever.

[@albion2742]

You still need the power to use a high gear.

[@theoverengineer]

Yup, nobody argues that. This video though isn`t about gearbox design, rpms or engines and top speed.It is solely about final drive and going faster.

[@albion2742]

I understand, some others always think that a high gear will make them go faster,I am sure you understand what I was trying to explain.

[@theoverengineer]

Yup, thank you for commenting. I thought about re-titleing or re-working the intro to make it clearer for everyone (it does come up periodiucally, especially Asian riders of 125-or-so-cc`s) but you can`t clip another file to it in youtube without changing its address. I`ll try to add slides.

[@theoverengineer]

Good one. Exactly. Bigger drive sprocket or smaller driven sprocket or both, and a new chain that works with both new sprockets.

[@Cbrplay]

Great explanation!! I love the background noise @ 5:00 minutes.... It's a big truck jake braking with straight pipes (no mufflers)!!! Lol I'm a retired driver and it reminded me of how my truck sounded... I own a Honda CBR954RR...stock gearing... 16f 43r... I am eager to try different gearing!! :)

[@MistaReason1]

Tire size also makes a difference

[@theoverengineer]

+Mista Reason Sure does: kzbin.info/www/bejne/r3i1iZh9js6KorM

[@MistaReason1]

Thanks. I just switched my quad racer set up of 13t 36t to 13t 38t with 18 tires . Will going to 20 tires be or should I stay with 18. I'm not worried about top speed, I just want quick take off. I mostly ride trails & play on the drag strip.

[@theoverengineer]

+Mista Reason Bigger tires don`t help in your case. If anything, smaller tire circuference helps with slow speed control and explosive acceleration. Stay with the 18, anything smaller gets stuck easily in gnarly terrain.

[@PaulodeMelo]

Can't stop picturing and laughing at your 2 teeth sprocket

[@masterzz57]

what about a 1 tooth sprocket

[@samthewizzy]

How about just a disk with sand paper for friction

[@OwaisAbbasiMrWOLF]

What about nothing.

[@chrisw5742]

I think those teeth need to be brushed.

[@arthurtaylor1053]

Ha,ha

[@joyride.motocamp]

great sprocket calculation education, thanks

[@tarun.bhardwaj09]

Wonderfully explained

[@theoverengineer]

Simple logic failed physics class, due to being clueless about the meaning of work. More work is done when turning a bigger sprocket with more teeth then a smaller when the force (N, or kg-f, or lb-f) applied to the chain is unchanged. It does take less force to turn a bigger sprocket though when the work (Nm, lb-ft, or J) is kept constant, ie the engine is not gonna get any amount stronger. So by mounting bigger sprockets at the rear the bike's force can do more work, speed drops though.

[@magicalempire]

imagine 1 tooth then we need to go to the dentist...

[@pdanayal]

Excellent explanation bro

[@lennycruz4558]

nice video.. I hipe my teacher was like you who can explain things crystal clear

[@MrXsnuff]

accelaration > top speed all day

[@deleater]

Agreed! But only till you start to miss the top end lol

[@E46TY]

Congrats you just went from 0-20 mph in 1 second and i went from 0-50 in 3👍🏼👍🏼👍🏼👍🏼

[@cooliodiablo6117]

Acceleration doesn’t mean shit though if your top speed is piddly. Yea you may be the first one out, but you’re also going to be first to be run over once the big dogs catch up.

[@Ihelpanytime]

7:37 "Speed tops" Bad english (Sorry for my LOL)

[@ramvan2284]

Thank you for teaching me this. Really helpful. Making a DIY electric trailer dolly using winch. This helps calc the speed needed & torq

[@rmr3dbaron]

This was very informational. I totally understand now!!

[@David-hi5nd]

Very good explanation.

[@XoXKyleXXX]

Very good explanation, I was thinking to change my drive sprocket but in the end I gain speed but I loose torque so its kinda what I want in my case I like torque I could change the driven sprocket but ill leave them the way they are. If I want not to loose any power I would just have to upgrade a few things to gain some HP add a few tuneups.

[@sureshbalaji2334]

Clearly understood brother 💯

[@NiklasRuud]

Thanks , very nice explained . Clear for me now

[@asifhaque6108]

Thanks for the information. It helps me a lot.

[@sonasi9009]

Great video mate. This helped so much. Thankyou.

[@theoverengineer]

Dune buggy project: If the engine is way undersized, (buggy too heavy) the inertia (juice to move mass) will choke and brake the engine`s loadbearing thinnest parts (not the valves). Usually, clutch springs will prove to be weak, friction plates slip and burn out, bolts holding at the crank journals rip out of the block, con rods bend, gear teeth grind off, axles with key ways twist and valve timing fails. That`s worst case scenarios. Everything needs to be the right size, not just the sprockets. The engine will last the longest if the drive sprocket is as small as possible to fit on and the driven sprocket as big as you can get. Buggies also have a lot of rolling resistance (sand) that keeps stressing the engine during operation, not just at start.

[@levietom4136]

if the durability and usage is match.the bike will last long,today manufacturer does not invent 100% long life bcoz comercialism prevail.designs made inventors more encouraging to alleviate its morale

[@bigbig6534]

14/32 can make more pickup or more top speed??..please

[@theoverengineer]

not enough data

[@huaweibest5647]

please... how about a biycle

[@theoverengineer]

Thanks for chipping in with a thourough comment. Much valued.

[@terrier53]

This video is great. Thank you so much for posting and teaching us well.

[@theoverengineer]

Glad it was helpful!

[@johnallcote7153]

I love the way you explained this you are so cleaver sir thank you.

[@theoverengineer]

Thanks for watching

[@1966johnnywayne]

Excellent refresher...thanks.

[@aldrinabatayo4470]

These is a very good ratio and proportion calculations, but if we talk about speed you must also consider the torque it give by these variations of engine and rear sprockets.

[@Dulema]

That's really cool. Thanks a lot. That video was very informative

[@joilsongomes5]

Thank u again made the calculation and found out I was wrong. Now I know what I have to do, thank u!!!

[@raymondmasikat7543]

.

[@snipeshothero1740]

Wow. Finnaly Somone that can exsplain this good. Thanks!

[@tryinggalet1975]

thanks for that wonderful video now it makes sense. i just want to know if the proper breakin of a motorcycle will affect the speed? for example i have a 150cc bike if i breakin it properly will i reach the top speed of 150kph with all stock including sprockets? and if i didnt breakin it properly will the bike become weaker? thank you

[@prshntrthr]

Thanks a ton for this man 🙏🏻💯🖤🏍️

[@nutmegger1957]

Where ARE you, anyway? In the parking lot of a Truck Stop? (lol). Thanks for taking the time to explain this. Appreciate it.

[@nahar958]

I used sprocket 15t front and 36t for rear on my honda ex5 100cc. Its good for long drive and fast acceleration. :)

[@agrmohamedrabbani3854]

Hiiiii bro,u r explaination is mind blowing......And good teaching, absolutely great understand......Thankzzzzzz broooo

[@theprofessor2485]

Thanks for the knowledge sir.

[@kunalbharti2095]

Very well explained

[@chandu7112]

Very nice. Appreciable video, go on doing like this

[@MarkPrince1317]

Thank you 🙏

[@nickicruz3658]

thanks a lot for the technical info...

[@mubasharallaudin9235]

Great videos!!

[@thepheasantman]

nice..i finally grasped this...thank you

[@bonjovi28563]

thank you so much for your reply Sir. your the best!

[@ninofoto1536]

Brilliant explanation....thank you!!

[@williamraley9632]

Did you just discover this? You need to tell the people that build motorcycles. WOW!