Best Honda Monkey Upgrade! 14T Counter-shaft Sprocket Installation and Ride Report 70 mph!

Kyle from www.ChapMoto.com installs a 14T JT Sprocket (down from OEM 15T) and hits 70 MPH on this Honda Monkey 125! Totally the best $7 investment one can make if they own a Monkey. Shop the 14 Tooth JT249-14 sprocket here:
www.chapmoto.com/jt-420-front...
Find the entire collection of JT Sprocket products at Chaparral Motorsports:
www.chapmoto.com/jt-sprockets
ChapMoto.com is a leading motorcycle parts and accessories retailer in the motorcycle industry. For over 30 years, Chaparral Motorsports has specialized in offering a large selection of motorcycle helmets, riding gear, replacement parts and motorcycle tires at reasonable prices. Ranked as a Top 100 motorcycle dealer by Dealernews magazine, Chaparral Motorsports is more than just an online retailer - with 160,000 square foot motorcycle dealership, Chaparral Motorsports is one of the largest motorcycle dealerships in the United States. Dedicated to delivering the best deals and service, ChapMoto.com has everything you need to keep your wheels turning.
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[@HolmesProspecting]

Simple and well thought out. Awesome!

[@chaparralmotorsports]

Thanks for watching!

[@KBCarruthers]

I ordered the sprocket immediately upon completion of this video. Absolutely the best ang for buck of any upgrade on any motorcycle that I have or had. Thanks for the great video.

[@chaparralmotorsports]

Great to hear!

[@gordonhudson6686]

Hi some guys are complaining about their shocks being to soft, to make them a pit harder adjust the bottom unit by lifting the spring up and half turn out of groove makes it harder, it works for me and dont cost nothing.

[@danielemarcato6849]

Thanks for your suggestion: done it! Works fine!

[@chaparralmotorsports]

Awesome! Happy to be of service. Check this one out: kzbin.info/www/bejne/bJmQaqWOaN5slas - Kyle

[@wylde39]

This is such a cool hack... and could be a game changer for the new Trail 125. Being able to do small bits of freeway, opens up a lot of adventure destinations.

[@chaparralmotorsports]

Glad you enjoyed it. It's useful for some people while others don't care for it. It all depends on your needs/desires and how you ride. Thanks for watching.

[@jamespatterson7809]

Very much enjoyed the video, Olive in Liverpool UK. I own a Softail Streetbob. I'm awaiting delivery of a new Monkey Bike. Once I've done first 500 miles I will definitely have a 14 tooth sprocket fitted !

[@chaparralmotorsports]

Hi James, glad you enjoyed the video. let us know what you think of the Monkey. Thanks for watching. Ride safe.

[@jamespatterson7809]

@@chaparralmotorsports First impressions the Monkey Bike is brilliant real honda quality and for a small motorcycle it bigger than expected.

[@HOPPOVERSION1]

Great watch ! Nice and simple install.

[@chaparralmotorsports]

Thanks! 👍

[@cubgsan]

Good morning to you! I am HONDA Cross Cub grandpa from Japan and sharing Cross Cub video. Monkey is so nice motorcycle !! So great job ! Have a nice day friend !

[@chaparralmotorsports]

Thanks for coming

[@whlsdn]

Impressive. Thorough report. Yes, a GPS speed comparison would be interesting, maybe even enlightening in that maybe the speedo is no longer accurate, but nevertheless..... Hard to argue the visible improvement.

[@chaparralmotorsports]

My GPS speed was 63 mph.

[@OMGMOTO]

Great video brother!

[@chaparralmotorsports]

Thanks for watching! - Kyle

[@melvinhunt6976]

I had a 750 in 1975 . ( my second one) It wasn’t as quick as the first one I had and in 5th gear would pull maybe 110 mph downhill. It just wasn’t the 120 mph plus that my first one was. The dealer sold me the front sprocket down One tooth! It accelerated way better and topped out at 115 mph . Fast enough and changed the whole experience of the motorcycle.

[@chaparralmotorsports]

Thanks for sharing. Glad you're still here to tell us your experiences. Ride safe.

[@sammariti3686]

Helpful video on an easy task for most people. I do miss being able to legally white line (lane split) on those Calif. freeways! I live in Ga. now, and wish more states would make that legal. Don't think they allowed 125cc bikes, though, on interstates when I lived there!

[@chaparralmotorsports]

Glad you enjoyed it!

[@leebrewer7394]

Do they just use water or chemicals to get rid of all the blood from lane splitters?

[@KipBurbank1]

I have a completely stock 2019. Top speed so far, 58 MPH. That’s what I expected. I figured Honda worked out the math gear:gears in the lab. Might try the 14.

[@chaparralmotorsports]

It was awesome!!! Check this out: kzbin.info/www/bejne/bJmQaqWOaN5slas Fun! Fun! Fun! -- Kyle & the Chap Moto Team

[@Foodgeek]

Downhill I've made it to 59 mph on my stock 2022 :)

[@sebastian3004]

@@Foodgeek will go faster if you put on more weights lol

[@williamakers1101]

@@Foodgeek going uphill a bit I maxed at 48 lol. 58 downhill. I'm like 210 pounds.

[@Foodgeek]

@@williamakers1101 Yeah, we're about the same weight so that makes sense. I guess if I ate some extra hotdogs I might be able to go slower uphill and faster downhill 🤣🤣

[@jalex19100]

Love your videos!

[@chaparralmotorsports]

Glad you like them! Thanks for watching! -- Kyle & the Chap Moto Team

[@melvinhunt6976]

In 1984 my V65 Magna would normally get 20/25 mpg. I probably never rode it when I didn’t get it up to 100 mph . I liked the quickness. My wife (then) and I took a trip to the mountains driving 65 or so on expressways and whatever everywhere else. My ex was on a Rebel 250 ! The rebel got 75 mpg and my V65 55 mpg.

[@chaparralmotorsports]

Great to hear. Thanks for sharing. Ride safe.

[@wayneheart7676]

My old 450 nighthawk got 70 honest mpg . It would use more if I ran it needlessly hard . But just regular computing at 55-70 mph it got 70 mpg . I checked it nearly every 3 gal . It held about .5 gal in reserve. I had 0 problems exceeding the speed limit with it . 9,000 rpm machine , with a 6 speed . It was alot of machine to take off road tho .

[@chaparralmotorsports]

Wow that's really good. Thanks for sharing.

[@timschutte6924]

That's incredible

[@chaparralmotorsports]

Thanks.

[@suomenpresidentti]

Remember that the speedo gets it's reading from the gearbox, not the front tire... Monkey's speedo lies 10-11% from the get go. Now after the sprocket change, it lies 17-18% Your 55 was actually 50. And your 70 is now actually 62

[@chaparralmotorsports]

Thanks for pointing that out.

[@suomenpresidentti]

Oops. Sorry I was too tired when I counted the last speed for the message in my head. The real speed after the sprocket change is 58 not 62...

[@budpearson6777]

I'm stock on mine and can run 54 like it is on flat ground, I'm 200lbs so if I could get 58 to 62 with this change I'd be happy. Might try it.

[@aquaticthumb5193]

I figured it was in the gear box. 50 to 70 MPH, would be a 30% increase. So I looked in comments, until I found this.

[@petersymons7817]

Thank you

[@chaparralmotorsports]

You're welcome

[@Foodgeek]

Awesome :) Do you know if that would be the same on the Honda Monkey 2022? The 5 gear version :)

[@chaparralmotorsports]

Hello, installation would be the same but gearing/speed would be different. But you could still change the sprockets to get your desired effect.

[@Foodgeek]

@@chaparralmotorsports Great. Thank you. :)

[@trevorwright5243]

The 2022 comes with a 14 in the front.

[@Foodgeek]

@@trevorwright5243 Yes, I've found out since writing this :)

[@BoyFindsTako]

This is interesting but resonates with me because when I went to bigger tires on my tacoma it became slower and 4th gear was faster than 5th gear. Thanks for posting, guess I’m buying a 14 tooth front sprocket for the monkey bike.

[@chaparralmotorsports]

Thanks for sharing

[@donwahle8199]

I installed a 16 tooth front sprocket on my 2019 Honda Monkey and was very pleased with it....now I can down shift to 3rd gear going up hill and/or into the wind and maintain my speed. So I tried a 14 tooth and was very disappointed with it....sure, the bottom end is a little quicker, but that's it. I went back to the 16 tooth front sprocket and love it. I made 3 speed runs with all 3 sprockets on the same flat 2 mile stretch of flat road in both directions and recorded my speeds using my GPS in nearly calm weather:: 15 tooth - 57 MPH 16 tooth - 55 MPH 14 tooth - 56 MPH I like the performance of the bike best with the 16 tooth, by far. You can use all 4 gears around town instead of only 4th gear. I have yet to upgrade any other feature on my bike, so far. and these guys may not understand, the 14 tooth has a 5+ MPH discrepancy on the speedometer/odometer vs. actual...I can hit 70 mph....down hill in a draft.

[@chaparralmotorsports]

Hey Don, thank you very much for sharing your experience and insight. It's kind of to each his own; everyone has there specific desires as to how they want their bike to perform--that's why the aftermarket industry is there, plus customizing and making the bike yours is half the fun. Thanks again, ride safe.

[@grey8940]

Great video! Thank you. But I need this for a 2022 monkey which is 5 speed. Now I'm not sure what to do about the sprockets..

[@chaparralmotorsports]

Hello, sprocket choice will depend on what you are wanting from the bike, more low end toque or more top end speed. Take a look at this: www.chapmoto.com/blog/2018/06/22/tech-tip-dirt-bike-chains-sprockets-and-gear-ratios/

[@synthartist69]

Actually what needs to happen, Honda should make a Gorilla or Monkey II bike. Two inches taller with a 175 to 250cc engine and a top speed of 70 to 75mph.

[@chaparralmotorsports]

Interesting. We'll see what happens.

[@gareebtravelleraniruddha]

I have a 2005 Honda Super Splender had same engine as Monkey, Had a gear ration of 42/14=3. Whats is exact gear ratio on your Honda Monkey now?

[@user-si2fy6ee1z]

Why in the Philippines no have Honda monkey in dealership...only have second hand honda monkey from japan and Taiwan etc.

[@brunob710]

BTW Monkey 2022 already have a 14T sproket. With a top speed of 111km/h for me as 150lbs

[@chaparralmotorsports]

Thanks for pointing that. Thanks for watching. Ride safe

[@Techno.Belgium]

You should do an update on the 2022 monkey version for this upgrade, considering it has 5 instead of 4 gears :)

[@chaparralmotorsports]

maybe when we get some in stock.

[@Techno.Belgium]

@@misstrunchbull3953 You're a weird fella, aren't you

[@terryjohn]

not got one as yet,,monkey.hoping next years time,thks for tips

[@chaparralmotorsports]

Fingers crossed!

[@joecamel6835]

I get up to 40 quick, 45 exceptably long , 50 takes several minutes :( , and 55 in 4 days . However all broken in and I get 110 mpg verified by many fill ups and I push her hard ;)

[@chaparralmotorsports]

ok, gotcha. Thanks for watching.

[@whendoigettosayfuck]

Change rear to 37 tooth vortex helps too

[@chaparralmotorsports]

Ok. Thanks. Ride safe.

[@MotoTvWoodsFarm]

Interesting nice video

[@chaparralmotorsports]

Glad you think so!

[@747fa]

​@chaparralmotorsports Hi. Thanks for the info. I was watching your video because each time I pass a guard rail, fence, small wall or high curb while riding my relatively new Monkey I hear what I can only describe as a ssssshhhhhhing type of sound which is not audible at other times. Could it be the chain is rubbing against something or is this type of "rubbing sound" common with the Monkey? Thanks.

[@Chad-wb7du]

Great video but ride safe man! Those were some stupid lane splits!

[@chaparralmotorsports]

Thanks for watching.

[@kellyspann9845]

I live in Dallas and I see people hit and some killed almost every day plus you get tickets for lane splitting. I don’t ride with people that do it Be Cool Man !

[@joelfigueroa1309]

@@kellyspann9845 it's legal in California and Utah. Statistically it's been proven to decrease motorcycle accidents

[@mikeherber8358]

Instead of having hold the rear tire you can also put put the bike in gear and the rear tire will not spin freely

[@chaparralmotorsports]

True. Thanks for the tip and thanks for watching.

[@brianrichard1768]

For a small engine, this makes sense sometimes.

[@chaparralmotorsports]

Hi Brian, right, gotta get some pick up where ever you can with these things. Thanks for watching.

[@kenteno822]

My 2023 monkey comes with 14 tooth sprocket factory.

[@chaparralmotorsports]

Good point, but this was an older model. Thanks for watching.

[@andyballard5311]

When you say sproket I think of that saturday night live skit called sprockets where the weird German guy starts dancing

[@chaparralmotorsports]

hahaha. Pretty good.

[@armadilllo]

do a gps check, speedos are off and it measures from the gearbox so changing sprockets will read higher so I'm guessing it doesn't do much, if anything.

[@chaparralmotorsports]

Thanks.

[@bnolsen]

Impact wrench for removal would make it much easier and put less strain on the gears.

[@chaparralmotorsports]

If you have one on hand, yes.

[@chrisdavidson911]

Did it affect the fuel economy?

[@dbx1233]

I wonder if you may have a faulty bike? I have the same bike, 2019 Monkey with ABS, and I don't have the problem you are describing. I'm 150 pounds and each of my 4 gears increase my speed to a max. of around 57mph.

[@chaparralmotorsports]

Hello, I don't think so. Just weigh different.

[@roygumpel8415]

Riding that tiny thing between cars on the freeway. You have a lot of faith in your fellow man, for some reason I don't understand.

[@chaparralmotorsports]

You get used to it, just like riding any other motorcycle on the highway.

[@JayDillon-mm6yv]

Leave chain lube in the casing, it traps junk away from the chain and sprockets.

[@chaparralmotorsports]

Thanks for your tip Jay.

[@JayDillon-mm6yv]

@@chaparralmotorsports Thanks -- I don't know how to do stuff - - thanks to you and other mechanics who share info --

[@baron30001]

What other mods did you do to the engine performance wise though? The bike looked completely stock in the pre sprocket video and it had at least an aftermarket exhaust on it in the after sprocket change ride.

[@chaparralmotorsports]

Hello, yea at some point we installed a Yoshimura exhaust on the Monkey.

[@knitpurlgirl3640]

Would be super helpful if you included socket sizes during the process.

[@chaparralmotorsports]

Ok, we'll keep that in mind. Thanks for watching.

[@armadilllo]

🤣🤣🤣🤣🤣not to difficult to figure it out, if one is too small, go up a size until you find the right one🤣🤣🤣

[@jkpinpdx]

Did the torque do DOWN since the top end increased. I’d see riding this on off-road trails and hills. Any low-end issues?

[@chaparralmotorsports]

Hello, we didn't dyno the bike, but did notice that the change made the power more usable across the board. Better performance first-third with first and second gear shortened up a little which helped with third gear/fourth gear.

[@MarkDavidBlack]

I wonder if that would help my new 2023 Monkey. Currently topping out at 53 mph. Can't even get to where I need to go.

[@chaparralmotorsports]

Hello, messing with the gear ratios is one way to get a motorcycle to perform as you desire. You can also improve air flow at the intake, run a different exhaust etc.

[@alexkerr7755]

Curious, since the bike speed is derived from the gearbox output shaft - Did you re-calibrate the speedo?

[@chaparralmotorsports]

Hello, sorry we did not.

[@Twin-Nick]

I swapped mine and it feels quicker, but since it screws up your speedo wouod u say this is worth doing it still?

[@chaparralmotorsports]

Hi Twin, it a toss up. Some people wont be bothered by the speedo or they'll calibrate their speedo accordingly. Others might not like how the bike rides/performs with the new gearing. It's really a matter of preference.

[@karltraveldude7817]

Looks awesome ! Question what will this do to engine temp.and engine life ! Thank you ... Enjoy .

[@chaparralmotorsports]

Hello, it's always best to stick with stock setup if you are concerned with the performance and longevity. But some people like to tinker and modify, which is fine, but can come with some issues that may need require more attention from the rider.

[@karltraveldude7817]

@@chaparralmotorsports Thank you , keep up the good work !

[@andys4971]

Kinda only depends how how you’re riding I would guess cause if you’re pinning it wide open with the og sprocket and then not with the new 14 tooth it might help

[@trevorjameson3213]

Even in stock form, I wouldn't expect that little 125cc engine to last forever being run wide open almost all the time. It's not going to break it, but it will definitely increase wear and tear.

[@karltraveldude7817]

@@trevorjameson3213 Thank you ...

[@terrazasaurus]

Is it safe to ride the monkey on long rides (50 miles or longer) with the RPM's so high? Do you think that will damage the motor? I had the 14t sprocket on a long ride recently and I hated hearing that thing scream the whole way. I liked having the 4th gear (overdrive) in the original sprocket. Should I put the original back on?

[@chaparralmotorsports]

If you're going to be riding long distances then you you'll probably want to go with the stock gearing for a little better ride.

[@el_italo_rd9955]

Do you have stock air filter?stock exhaust?maybe the bike needs more air flow

[@DavidReese2ndA]

I'm 145 lbs, I hit almost 60 mph! Not changing mine!

[@chaparralmotorsports]

Hi David, yeah a lighter rider will be able to hit 60 much easier than heavier riders. Changing sprockets is easier than losing weight though....hahaha.

[@DavidReese2ndA]

I recently changed my Exhaust..... One of these... japan.webike.net/products/23878206.html Boy what a Difference in just changing the flow of EXHAUST on an Engine.... with only 9hp... Can Bring out a Little More Energy!!! an Easy 70 mph on that perfect day is so much easier!!! And You can hear it!

[@petergalli2001]

Al final, en 2022, 5 marchas ..

[@chaparralmotorsports]

Yup

[@carlcolorado3549]

I believe once the bikes broke in a little bit it loosens up everything and get a little more speed out of it

[@chaparralmotorsports]

Yeah that can account for a little bit of improved performance in some cases. Thanks for watching.

[@carlcolorado3549]

@@chaparralmotorsports Turns out it's a break in. When you first get the bike it's slow during the break in miles. After a certain mileage the computer opens up %100. Keeps from people blowing the motor to soon and makes the bike less likely to breakdown. Smart thinking by honda if you ask me

[@toddthomas4677]

Do you think you could make that same upgrade to a Grom and Super Cub?

[@chaparralmotorsports]

Hi Todd, yeah you can change up the gearing on those bikes. Thanks for watching.

[@yvonnecarpenter2957]

Ok, it begs the question. If it is so simple to get an extra 15mph, why didn’t Honda ship this beauty with the 14 T sprocket? I imagine they are aware of the advantage. I cannot even phantom Honda engineers being unaware of this. Perhaps there was a reason for the 15T. Just scratching my head here.....

[@1ceCold037]

Changing to a 14t sprocket makes the speedometer inaccurate. It will indicate you're going faster than you really are. Maybe it gained him 3-4 mph faster, but definitely not 15.

[@ayuse01]

The question is, where is the speed sensor takes it’s data from? If it is from the wheel speed, then yes you go at the speed it displays. But if the sensor is reading the transmission output shaft speed. Then what you see on the display is wrong.

[@chaparralmotorsports]

Good point.

[@whlsdn]

There appears to be no "JT249". Your link point to a 420. Is that right?

[@chaparralmotorsports]

Thank you for your inquiry Randy. The listing is for many different sprockets. If you click the Availability tab you will see the 14 Tooth Part Number JT249-14 that we used. -- Kyle & the Chap Moto Team

[@TheBeardofDOOM]

Are you running a speedo healer? I’m curious what the actual speed is.

[@chaparralmotorsports]

Hello, sorry with this mod we were not.

[@BillySBC]

Why does everyone who buys a small bike insist on trying to get them to do what a larger bike does? Yes you hit 70mph, but you revved the piss out of the little motor to do it, and you will most certainly wear it out a whole lot quicker. If you wanna do 70 mph all day long then buy something 500cc's or larger.

[@chaparralmotorsports]

Why does anyone modify/customize their motorcycle...? Because it's fun/interesting to try different performance and style mods with them.

[@Bucksandkids]

I did not see a 2022 option?

[@TreenighetMaranata]

What is your recommendation, if you are going to replace the small gear from 15 to 14 teeth! For best results, is it best to replace it before the run-in or after the run-in?

[@chaparralmotorsports]

I'm sorry, what are you asking?

[@chua5107]

@@chaparralmotorsports maybe he meant engine break in which is around 1k miles?

[@tjmacoy7066]

which one did you use the CRF150R or the CRF150R expert sprocket?

[@chaparralmotorsports]

Hi Tj, if I recall correctly, both the 150R and 150R Expert use a 15T front/counter shaft sprocket. The rear sprocket on the two models is different. The 150R uses a 50T and the 150R Expert uses a 56T--at least that's the case with the late model units. The Monkey comes stock with a 15T counter shaft (that's all that was changed in this video) and we changed it to a 14T JT Sprocket. Thanks for watching.

[@deepfriedking]

can't believe you pass in the same lane as a car. holy shit

[@chaparralmotorsports]

You get used to it after years of riding.

[@johcooper2266]

Would this be nesasary or beneficial in the five speed in the 2022s ? I'd like to see that put to the test.

[@chaparralmotorsports]

Hello, we have yet to test ride a new model, we will put that into consideration. Thank you.

[@mangtiks]

How much is the 2024 honda mongkey? And how much is the sprocket upgrade service?

[@chaparralmotorsports]

Hello, please contact our vehicle sales department and service department for pricing [phone]. Thank you.

[@ramiretz]

speed sensor is on the gearbox outputshaft... if you change the front sprocket 1 teeth smaller it shows 7.5% more speed .......

[@chaparralmotorsports]

Thanks. We'll take note of that for future reference.

[@jeffreydevoti8528]

If speed is important should have gotten a bigger street bike. Honda has this geared for people that may want to take these trail riding, short urban trips.

[@chaparralmotorsports]

It's all part of the fun of owning motorcycles; modding them to see what the can do, make them look better, perform better, or helping them achieve milestones they weren't intended to do. Thanks for watching Jeffrey.

[@Techridr]

I'm sure you know by now that the speedo is controlled by the transmission, not the front tire wheel speed, so all your measurements are going to be wrong. Although, it's likely true that you'll gain speed overall because Honda keeps the top gear tall and out of the powerband for sound/economy regulations, but you're probably much closer to about 60 than 70.

[@chaparralmotorsports]

Yes it was overlooked. Thank you for the comments and valuable insight. Ride safe.

[@ran6974]

Would the speedometer not read wrong after the sprocket change though? I.e 70mph on the speedo may not actually be 70mph?

[@chaparralmotorsports]

good point. We should have used GPS to monitor speed.

[@joeybishop7604]

Now put a 1 tooth larger rear sprocket, and see how that effects it.

[@chaparralmotorsports]

Hi Joey, thanks for the suggestion. We'll work on it.

[@kidsalamie1]

I know they are two different style bikes but I am looking at either the Monkey or Supercub, What is your take?

[@chaparralmotorsports]

Our opinion is, that while the Super Cub is a very cool retro looking machine, the Monkey is more versatile--for customization and terrain. Plus there's less bodywork to deal with/replace/repair in the event of a crash.

[@bombidude]

What sprocket do you recommend on a 5 speed monkey for a little more top end?

[@chaparralmotorsports]

Hello, play around with some of the gear combos on this website: www.gearingcommander.com/

[@BeanieBiker_AutisticRider]

Are American ones lower than eu market ones, because everyone I know that has these are hitting anything between 65 - 70 mph as standard. Something doesn't sound right if yours only hitting 50mph

[@BeanieBiker_AutisticRider]

And I know they're doing those speeds because they are riding next to me on my Street Triple, I'm seriously considering selling my 675 and getting one of these for a commuter bike where I live, as I have too many bike medium and big bikes

[@chaparralmotorsports]

Thanks for watching! Check out this video I created after the sprocket install: kzbin.info/www/bejne/bJmQaqWOaN5slas GPS speed was high 60's mph. Super fun little bike!

[@BuzzDaTower27]

Yep. My completely stock Monkey will accelerate uphill in 4th to 60mph and hits an indicated 76mph on the flat with a tail wind. I'm not changing my gearing!

[@311ranger4]

@@BuzzDaTower27 I'm with you. 180 lbs and my stock monkey was hitting 65 on a flat. It zips straight up to 50 mph in a few seconds. It's getting to 60mph that takes a min. Lol

[@mikeherber8358]

@@BeanieBiker_AutisticRider whats 575

[@Knighthead58]

I’m 160 lbs and mine runs 60 mph on flat roads. Question, have you checked your speed with gps ? I’m thinking that 70 mph may be a false reading off the speedometer. Not knocking what you did by no means just curious.

[@toolshedjunky]

You are very much correct.

[@UCm0i6w5lBlRthCtZEoj99tg]

160 is what a boy/teenager weighs, an adult man is going to slow down the lil 10 hp motor a lot more

[@trevorjameson3213]

It is a false reading from the speedo. All Japanese bikes indicate a speed of about 10% faster than true speed. Use a GPS on your phone to get a more accurate speed. I have a friend who was riding his Honda Shadow 750 with me last week, and I'm riding an old Harley Sportster, which has a very accurate speedometer. After the ride, he ask me why I was going "so fast!". Lol.. He said dude, you were doing like 78mph the whole time! Lol.. In reality I was only doing the speed limit, which was 70.

[@zefautino]

10 months and no reply! Easy to know how the top speed was achieved. With 16% error, which is roughly the margin you get by going down 1 tooth in the front.

[@danielkerr4100]

@@trevorjameson3213 phone speedo isn't accurate at all, the speedometer on the bike is the most accurate.

[@Paul_VanGo]

That is some interesting driving on the highway, I must admit... Is that even legal to just weave left end right through the traffic?

[@chaparralmotorsports]

Hello Paul, lane filtering/splitting is legal in California. Thanks for watching.

[@Paul_VanGo]

@@chaparralmotorsports Ok. Thanks for your reaction.

[@jdmoney1000]

@@chaparralmotorsports Yeah, informative video, but the lane filtering/splitting was hard to watch, cringe-worthy and wreckless. Hard to believe that would be legal anywhere. But, leave it to Cali...

[@leebrewer7394]

@Phil M and do not care if one of 500 cars a dau you pass at 2ft away is texting and squishes you like a grape.

[@chua5107]

@@chaparralmotorsports is it even legal to take the monkey on the 210 fwy in CA? I thought there was a 150cc limit? Just wondering as I am getting a monkey soon.

[@hoosierkettle605]

I just did this. Did you use loctite? I didn’t but wondering if I should.

[@chaparralmotorsports]

Loctite isn't a bad idea.

[@gilligan182]

If you dropped down to a 3 tooth sprocket - with your math you can go at the speed of sound... I suggest a one tooth sprocket to get the full potential of the monkey bike

[@chaparralmotorsports]

Thank you

[@zefautino]

I like the troll suggestion. But... 56 rear would go ridiculously fast with that 1 front. 🤣🤣🤣🤣

[@christophermylesritter4882]

I would love to get it to where it can go 80mph top speed on my 2022 Honda monkey any suggestions?

[@chaparralmotorsports]

Find a steep hill. But seriously, attaining speeds like that on a small vehicle like this is not recommended.

[@Minibikebenji]

Mate the speedo is wrong as you change sprockets. 60 miles an hour before you edit the sprocket is really only 54 about 10% wrong. so when you change 15 to 14 tooth sprocket makes another 6%+ speed difference so 65 miles an hour you say is really just 54.6 miles an hour. it's really much less of a difference than you think. you are not going from 50 to 65 miles an hour you are going from 50 to 54 miles an hour. Do the test via GPS on your phone you will see. If you want more speed the cheapest way is install a PCX150 Injector ($30) also go 1 cooler on spark plug $5 then get a Chimera intake and with your existing upgraded exhaust you will be doing over 60 miles an hour. if you want more power do a type 2 cam and get an ECU for more top end power but that costs quite a bit more.

[@BuzzDaTower27]

I don't understand why your bike is so slow? The UK bikes I know of and mine included will hit over 70mph indicated. I've had 76mph on the flat with a slight tail wind. My Speedo reads about 4mph faster than GPS.

[@korky7775]

Same for the Honda super cub American one seems a lot slower...in fact i was thinking of upping the front sprocket (from 15 to 16 tooth ) to relax the motor at top end...

[@JetSkiBuyFixPlaySellChannel]

Maybe the air fuel mixture for EPA numbers.

[@brianhoward9217]

All you commenters should be quoting your WEIGHT so your speed runs can be put into perspective. Pounds AND kilos, please.

[@korky7775]

@Mario Torres Ouch !! That was harsh....

[@timtaylor8557]

Thats because miles are shorter in the UK!

[@aquariumcockpit9949]

Any other tuning you need to upon switching to this 14t?

[@chaparralmotorsports]

Not really.

[@chasentube]

Has anyone done any sprocket mods with the new 2022 5 speed?

[@chaparralmotorsports]

Sorry we have not.

[@denniswillman7454]

was it hard to remove the tank emblems

[@chaparralmotorsports]

Hi Dennis, we didn't remove the tank emblems, that we just a decal we got from Yoshiumura.

[@peterfordf250]

But what kind of difference would it make with the 5sp trans?

[@chaparralmotorsports]

Hello, sorry we haven not tested with the 5-speed.

[@garycliffe6209]

I put a 14 tooth on my monkey. It improved it but not by that much. It throws your speedometer way out at the top end says your doing 70 when your only doing about 59-60 mph?

[@chaparralmotorsports]

Yes... I found that out after this video was published. I have a GPS speed of 63 mph. Better than the 50 I was not able to break before the installation! Thanks for watching! -- Kyle & the Chap Moto Team

[@robertm8221]

From what I understand this bike is not freeway legal in California, is the bike freeway legal in other states?

[@chaparralmotorsports]

It's not freeway legal as it can not do 65 mph. After the exhaust and gearing... I was totally ripping the freeway - but only when I knew traffic was "slower" than I could go. They are DOT approved.

[@armadilllo]

you are correct, California freeway legal is 150cc and up.

[@jasonbosworth8549]

Will this also help a new 2024 Monkey wt the 5 speed?

[@Neightlive]

Already ha Ms a 14t

[@nexusapp]

Is it possible to convert the Monkey to a 250cc motor? 125cc 4 strokes is too weak.

[@chaparralmotorsports]

Almost anything is possible when it comes to modifying/customizing motorcycles.

[@Misterio_11]

If I do the same thing to my dirt bike, will increase the top speed too?

[@chaparralmotorsports]

Hello, this article may help you. There is a chart at the end that shows you the difference changing the sprockets make: www.chapmoto.com/blog/2011/04/25/adjusting-your-drive-ratio-changing-your-sprockets-for-maximum-performance/

[@stevo5521]

Am I seeing correctly? Are you passing between cars in the same lane as you? If so, how is that safe or legal? Thanks for the info but that was a scary ride.😬

[@chaparralmotorsports]

Hello, it is called lane splitting or lane filtering. It is a legal practice here in California and is becoming legal for motorcycle travel in more and more states.

[@masteraquarius747]

I’m putting a industrial Moto side car on my monkey. Going with a 13 tooth up front. Will I need a new chain? Or will it adjust back enough?

[@chaparralmotorsports]

You should have plenty of room!

[@emanmoral]

@@chaparralmotorsports Hi, What will be the effect if 13 tooth will be used?

[@meuhey]

so why Honda used the wrong sprocket on the bike???

[@chaparralmotorsports]

No, Honda used the best suitable sprocket for a wide scenario of riding styles. We changed up the sprocket to see the difference in performance.

[@ashleyevans9363]

Kyle great video. BUT! Driving between cars like that is not the smartest thing. Here in Louisiana they will lock you up quick for that lol

[@chaparralmotorsports]

Thanks for watching. Lane splitting/Lane filtering/Lane sharing is legal in California. You get used to it and learn what to look for both as a rider and driver after some time.

[@richardvalitalo3670]

Don't get too confident lanesplitting, it should be close to similar speed not 30 mph faster! You won't have reaction time! Thinking about a monkey bike.

[@richardvalitalo3670]

Don't get too confident lanesplitting, it should be close to similar speed not 30 mph faster! You won't have reaction time! Thinking about a monkey bike.

[@jeffwhite9001]

But is the speedo driven off the front wheel or electronic off the gearbox?

[@zocmedia1869]

Another post pointed out that it's off the gearbox, so the speedo showing 70mph was inaccurate. Something like 7.9% increase in "speed" that displays on the speedo. So others suggested gauging speed by GPS instead.

[@jeffwhite9001]

@@zocmedia1869 yup, the speed he reckons it does will be totally inaccurate then.

[@healthyliving2091]

Where can you order the 14 2 sprocket?, Thanks

[@chaparralmotorsports]

Hello, you can find the 14 tooth sprocket here: www.chapmoto.com/jt-420-front-countershaft-sprocket.html

[@heep34987yt]

Speedometer is off due to the sprocket change… need to recalibrate it with a speed doctor.

[@chaparralmotorsports]

Got it. Thanks for watching.

[@EstebanAGaido]

Best option is 36T rear sprocket.... why? Because 14T is too short and also in the ABS models the ABS light turns ON detecting there is a lot of speed difference between front wheel and rear wheel. In all Europe all models from Grom to Monkey since 2016 all models came with mandatory ABS. And I think in America also is a optional. So you need to inform properly.

[@chaparralmotorsports]

Thank you for your feedback and for your caution Esteban. I did not think that ABS would be effected... interesting.

[@petebusch9069]

Impossible to have speed difference between front and rear wheel unless the wheels are different diameter or your spinning a wheel, has nothing to do with gearing.

[@michaelmcclown5593]

That is impossible if you think about it.

[@EstebanAGaido]

​@@petebusch9069 The bike is designed with front wheel ABS signal to work along with 15/34 sprockets, and the speedo signal is taken from the gearbox. SO... if you put a smaller front sprocket or taller sprocket on rear wheel, the gearbox will be spinning FASTER than before, and front wheel ABS signal will be different than gearbox speedo signal and it will detect anomaly turning ABS light ON.

[@wiebe9999]

@@EstebanAGaido nope no light on with mine 2018 model monkey and 14 tooth sprocket .

[@liamearnest315]

Hey should I do a 13t sprocket instead, I feel like that 14t never helped it reach the power band

[@chaparralmotorsports]

Hi Liam, you could try the 13 tooth. It's all personal preference and what your desired goal/riding style is.

[@nolarocks]

The "power band" is lower in the rpm range on this bike. Look at the dyno curves. The power band - or peak performance range should span near the crossover of the HP and Torque maxima. In reality - on this bike - it will be the area between the max Torque and max HP. That is the sweet spot.

[@nolarocks]

Looks like the stock bike's sweet spot - or power band - or peak performance - is between 4k and 6k RPM (approx).

[@liamearnest315]

Thanks for the help

[@liamearnest315]

I put better carb and exhauste on mine and a 13t seemed to work better I was able to reach 67 maxed out, 7mph difference between stock and 13t. But I don't think I would recommend this unless your bike has a bbk or a better carb to pump out more power, otherwise the bike never really reaches the power band

[@jroar123]

Are you in Henderson?

[@chaparralmotorsports]

Hello, sorry we are not. We only have one physical store, the address is 555 South H Street San Bernardino California. Our website is: Chapmoto.com