Building a 70mph+ Motorized Bicycle

[@trentbikes]

I'd like to correct something. That frame is not a felt frame, just a nirve frame. I thought they were also called that, so, oops. Oh well. They do look like steel felt frames regardless, pretty similar style.

[@spongeimperium126]

@@trentbikes Hi, I got the same bike but all red with matching fenders. Pretty sure it's completely original even with the nerve BadA$& tires.

[@BenDover-tn6vx]

How about fitting NOS bottle? A little extra burst of speed for y'all. Stay safe my man....

[@trentbikes]

​@BenDover-tn6vx nah

[@Ligma-f4o]

good work at the gym my motorized bike daddy lookin good

[@hunchomiles2552]

@trentbikes What CDI Box and what carburetor do you use?

[@matthewpeter4034]

Those clutch pads are holding on for dear life 😂

[@trentbikes]

eh. I've been burning the rdm plate by clutch slipping hard for longer times, which is not ideal I know, but oh well. I'm sure it's warped now or something.

[@matthewpeter4034]

@@trentbikes i got worried the other day I went from 46t to 32t and increased my compression as well. The clutch started slipping bad but all it needed was the flower nut tightened a few turns lol.

[@mikecyanide7492]

​@@matthewpeter4034lol I feel ya bur your clutch and his clutch have absolutely nothing in common

[@michaelbrinks8089]

This is very similar to what I want to build....A strong reinforced motorized bicycle that can SAFELY cruise at 45-55mph using moped or motorcycle tires...But that looks like a regular slow motorized bicycle....I'd also like to use a 750w front ebike hub motor for a hybrid. So I can switch to 100% legal fwd ebike in certain areas....That way I could cruise 45-55mph on the back roads 15 miles to my closet town of 30,000. Without it having to be an all day ride....I'm not sure how much chain drag or hub drag I'd have when using either gas or electric, is one issue to consider. A 2 stroke in N would have lots of chain drag. I'm pretty sure they have hub drive motors. That don't create drag when pedaling only.

[@trentbikes]

Yeah I like steel felt/nirve frames like these. Very sturdy. I want a real steel felt fat tire (second generation) frame, those are the best from what I was told.

[@Matthew-wj8cm]

The Smoking Loon with Geminis and ThickSlicks goes amazing Trent! Finally a safe great looking bike. Thanks for uploading❤

[@trentbikes]

Now I need to make it look cleaner!

[@JLock_17]

It's a bicycle you can take on the interstate. You know, if you're a little deranged. Definitely keeping up with some 125 CC bikes.

[@trentbikes]

Yeah, somethings always breaking down and I have to go back home and fix it. Pipe cracking/loosening, engine issues, and more.

[@travell3065]

Yo you crazy riding in that bike lane up on them cars like that one of those car decided to make a right turn you a goner 😮

[@trentbikes]

well that's what signals are for, but even then some don't signal, so yeah you're right. but eh, if it happens it happens at least I'll be at peace lol

[@2strokezoomies]

With u for the whole journey 💯

[@teeco_yt]

When Trent uploads you know it’s a good day🫡

[@DirectCurrent4u]

💯

[@thunderanderson2491]

great help. I've been watching all your videos! i just finished building my first 80cc bike today!!!!

[@trentbikes]

welcome!

[@mrbing70]

I don't have a motorized bicycle but was running around the yard with the lawnmower screaming Trent Bikes. Wish I had one of these or a Grom

[@trentbikes]

lol

[@trentbikes]

a motorized bicycle is cheap. $100-150 bicycle engine kit on amazon/ebay (get the two piece cylinders, so you can replace/upgrade head, easier porting etc), and an used bicycle on facebook or craigslist.

[@mrbing70]

Thinking about getting BT100 version 2 and Walmart Cranbrook or old school 80s/90s mountain bike

[@trentbikes]

@@mrbing70 all stock bicycle engines perform pretty much about the same (except the phantom 85, menace 85), heck maybe even the avenger 85. Don't waste $300 on a kit. Just get an avenger 85 kit for $200 if you want a more reliable but still kinda fast out of box engine (like 40mph+ depending on gearing). Either way one of those $100-150 kits on ebay/amazon will do.

[@mrbing70]

Thanks trent. You're the best! Love this channel

[@motorizedbicyclenation53cu90]

Always put fiberglass or epoxy weld on tank around the studs to prevent leaking.

[@michaelbrinks8089]

👍 That's exactly what I did to my new tank before mounting....Sanded the paint around the 4 studs and reinforced them with JB weld...Used 2 coats & smeared it up on the threads a ways....The more the better as long as it doesn't interfere with mounting the tank.... No problems since 2020.... I also bought a plastic shut off valve from hardware store in lawn & garden section & I use it instead of wearing out the stock petcock tank valve.

[@g-track5065]

Be careful we are watching you and need your blogs homie!!!!!

[@Jimmy-hk4gr]

You got balls of steel my man I'm afraid to take my Avenger over 40, maybe its my age Lol!

[@Slerveyy]

How did u make it that fast

[@markthesun2140]

Omg that was so funny with the forks upside down, nice...

[@leonardarola]

Dude... If I was lightweight like you... Drop out needs to be modified; proceeds to modify it over the carpet. Priceless. Thanks for sharing.

[@trentbikes]

lol

[@MikeJones-pg7dy]

wow this thing is nuts bro! nice work G

[@danielromero5204]

It’s so fast!😮 watching from Philippines 🇵🇭

[@SUPRAMIKE18]

Damn thats one hot bike! Stay safe out there dude ❤️

[@JTVlogs.247]

43 mph on my 4 stroke is insane can’t imagine going over 70 lol 😂

[@g-track5065]

He's going hard!

[@PaidOffShots777]

Try using some type of rubber or something under your fuel tank to insulate the vibrations from cracking it

[@trentbikes]

eh not rlly gonna work

[@PaidOffShots777]

@@trentbikes you tried it ?

[@phatmotocat]

Key to any bike build, coffee. Nice build.

[@trentbikes]

Thanks!

[@jasonchambers9914]

@@phatmotocat it’s gotta be weed for me or I get too frustrated while working on bike/car

[@kennethmeese]

You're one crazy dude!

[@mikemiller3303]

Congratulations on 73 if you could lay down like these people I see on KZbin I think you'd hit your 75 if not faster ride safe brother

[@trentbikes]

@@mikemiller3303 I hit 76 on my old bike

[@trentbikes]

just saw this, I hit 76mph before this video on another video

[@toddhazzard8772]

It's nice having that speed. As long as you have decent torque to get out of the way. Good Brakes help,too. 2:35

[@trentbikes]

haha yea

[@toddhazzard8772]

@@trentbikes I really can't imagine that kind of speed on something not really built for it. Mine will do 35. More of an Enduro bike setup. Fast Enough. Torque to go Anywhere ( almost) in any conditions. And didn't cost an arm and an ass to build. So far maybe 500 in it after 4 years.

[@Red_Knight_66]

What kind of engine is that. where did you get it?

[@YellohFoxGaming]

Fucking wild man, be safe and have fun

[@jeromecabral192]

I'm gonna build mine like this. In fact in the state of Kansas i don't have to be licensed 100 percent legal in kansas

[@trentbikes]

nice

[@catsbyondrepair]

Actually you do need a license for a motorized bicycle in all 50 states

[@trentbikes]

@@catsbyondrepair I don't have one. Cops don't care.

[@MezzysAutomotive]

😂 this video is great, ridiculous quote “Like your asscheeks in jail” what the hell bro

[@trentbikes]

lol

[@skate_health7319]

Dude is cooking!!!!! I just build a phantom. Only issue is brakes are crappy. Would love to have disc brakes .

[@trentbikes]

upgrade to thsoe then

[@skate_health7319]

@@trentbikes old frame doesn’t have the mounting brackets. I’m looking into getting one with built In tank

[@trentbikes]

@@skate_health7319 you can upgrade the forks that uses brackets

[@skate_health7319]

@@trentbikes will look into that thx !

[@macmotorizedbike3834]

Right on man you nailed all the motorized bicycle hacks awesome machine!!

[@trentbikes]

haha thanks

[@a.m.bgarage.everydayprojec9665]

You should look into 2 stroke motor scooters. The older 100cc and 250cc Vespas go 75mph. If you get ahold of one of the Dual-cylinder motor scooters, you can get CRAZY speeds.

[@trentbikes]

Eh, this is a motorized bike channel, so I'd like to keep it to mbs only. Thanks for the suggestion

[@a.m.bgarage.everydayprojec9665]

@@trentbikes lol. For sure. BTW, have you considered a 212 bike? Even a basic one is capable of close to 70mph. Or are you a true die-hard 2stroke enthusiastic (respect either way).

[@trentbikes]

@a.m.bgarage.everydayprojec9665 I have a tilly 212 that I have yet to build. So yeah eventually. Just money money money.

[@timothyproksch2915]

Nice looking bike

[@mikecyanide7492]

Your a nutcase. I dig your channel. Took your avenger advice... apparently 12k is too much for an avenger lol

[@trentbikes]

@mikecyanide7492 what was the advice?

[@mikecyanide7492]

@@trentbikes well it was when you when porting and matching the transfers and busted thru. Watching that save me a headache when I matched mine I did the case and minimal on the cylinder. Thank you for the response! I know it wasn't direct advice but your video was a great guidline on what to expect. I am at the point now tho where I realize the avenger is a very flawed amateur motor lol

[@trentbikes]

@@mikecyanide7492 Oh, yeah. Did you read somewhere saying that 12k is too much? I think avenger crank bottom conrod bearings and piston can handle 12k rpm. maybe not.

[@mikecyanide7492]

@@trentbikes first hand I'd show ya pics if I could but it buried the ring retaining pin into the cylinder wall. With a 3mm deep trench lol it's their most major design flaws. The husqvarna piston,in a husqvarna saw the piston never goes low enough to reach the intake roof. It can be corrected somewhat with an ms460 phantom style piston but those put the the pins in the transfer roofs lol. I learn the hard way with an almost 70mph pull lol

[@JMB676]

It’s all fun till someone goin the same way as you don’t see you doin 70 down the shoulder/bike lane in a 40ish mph zone and thinks “oh snap my turn” and makes a right and you smash into him. I’m glad you put a disclaimer in the beginning cause this is just reckless. I use to be all about speed till I got my bell rung and now I just enjoy getting there every time without all the pain of hitting and falling.

[@trentbikes]

@JMB676 it's not like I'm not slowing down when there's cars from the streets about to pull out into the roads im on. Im smarter than that.

[@hamzahmushtaq877]

This happened to me at 20mph think about 60 😂😂😂

[@matthewfredrickmfkrz1934]

If you're hitting 70 why be in the bikelane

[@younggg4209]

Mt bike does 45+ I mix it up cause cars can be assholes also trying to race lol

[@RowansTalkShow]

Get his D out your mouth

[@DirectCurrent4u]

Congratulations on the New Bike and build! I really like the bike You picked up! I want to get a steel frame bike like that one myself. Your builds are always really awesome! You keep getting better and better with every build. You might want to try some Tank sealer for your tank. I have to coat 2 of mine last week with tank sealer. It takes a while to do but well worth it! 💯 Just make sure all your welding is done before you seal the tank. It fixed all the pin holes no problem. I am using a 1 gallon 4 oz.tanks and I made all new brackets for it that fit the frame perfect and bolt on very easy. End of tank issues. Is that Your Athena Motor You have in this bike? Keep up the great work my friend and stay safe out there.👍🏁

[@rcadventures4342]

Hell ya great speed, nice build you’re stepping up your game…

[@trentbikes]

ty

[@jamesdaniels-s6v]

Thumbs up 👍on video nice build on bike coming from James , Michael Daniels

[@trentbikes]

ty

[@albertomunoz2610]

Tengo que decirte que te mereces mucho..son pocos los que arriesgan su vida así.. como haces para que no se sacuda ..

[@trentbikes]

wdym shaking?

[@SHWELL11]

Time for some lights on that thing..

[@trentbikes]

I don't ride at night sooo

[@richardobenour5028]

im going thru some of the same problems you are i just sealed my gas tank waiting for it to cure 4 days will be done monday wish i could post videos but phone is junk and have no camera good video though and nice ride!

[@trentbikes]

upgrade to those 1 gallon gas tanks, they're only $30-40. totally worth it

[@2Fast_Brian]

Sweet video! Hope you enjoy the wheels! 👍🔥

[@trentbikes]

Yeah i like them, thanks

[@joneserupinsmoke9161]

after all that stuff breaking off u got a set of nuts hitting 70 again lol

[@trentbikes]

lol

[@hollywoodaaron9766]

Im impressed man!!! What kind of engine is this and what other mods did you do to get such a wicked top speed

[@trentbikes]

@@hollywoodaaron9766 70cc athena sport hybrid engine with rmh minarelli pipe and 20mm pumper carb

[@macmotorizedbike3834]

Insane U the motorized bicycle 👑

[@trentbikes]

Lol ty

[@dsdcaragua2514]

you are crazy man lo cheers from brazil!

[@KingRed-n5k]

Straight up genius

[@LucianosMindOverMatter]

2:45 i never know bro thanks for sharing

[@JMB676]

You should def stick to those back roads bud where it’s open and no cars and no bike lane where you are just in the lane of traffic but no cars. It hurts like hell falling at 50, I can only imagine how much it hurts at 70. Stay safe bud but I don’t think that’s your motive lol.

[@SHWELL11]

Bro, you are a wild man!

[@trentbikes]

thanks

[@jameslongflop3886]

Holy hell that's fast!!! What did you do to the motor!?

[@trentbikes]

just a 70cc athena sport hybrid engine with RMH minarelli pipe :) (and pumper carb). stock ports of course

[@Dom_from_ZA]

Awesome build there man. PLEASE for your own safety do these high speeds on empty roads. Stay safe 👍

[@brianhawkins866]

Can we get a video of all your upgrades on the motor? Im not trying to hit 70mph by any means,im shooting to be able to cruise at 45mph and maybe 55mph top speed,i can get to 40 mph now but powerband stops around 30mph,or could u make a video or comment back what to do or upgrade to be able to easily cruise 45mph without stressing the motor out, PLEASE REPy

[@trentbikes]

its just a hybrid 70cc athena sport with RMH pipe given to me for free. and pumper carb.

[@lifesadventureskeepingitre1180]

73 mph not bad mine got up to 9 3. 2 miles per hour at least that's what the cop said that pulled me over

[@jmrides777]

What crank are you rockin in that build?

[@trentbikes]

Stock

[@Kingebikelife85]

Can you tell me where you have purchased your brakes from? At what kind are they?

[@trentbikes]

description, i explained it in the video

[@All-rounder21.]

Can you give me the Engine kit link?

[@tylerstreet8614]

He shows the speed test at @9:26 👍

[@TanBoiIndustries]

Love you Trent

[@trentbikes]

Gay

[@LeoAnastasopoulos]

We’re do you get that seat from?

[@JulianJaimez-h9u]

What's your thought the mineralli from gorilla gas bike? I need a strong enough engine to take me to school and back it's about 60 miles altogether speed limit out here traveling to another town is 50

[@trentbikes]

You can get the same cylinder kit but without gaskets (make your own with $7 gasket paper on amazon) for $50 on californiamotorbikes. However, a complete engine kit, for $190 on gorillagasbikes, that doesn't seem like a bad deal. Comes with a carb. But not pipe as far as I can see. They are plenty powerful and can easily turn like 10k or so rpm. So I don't see why not. Never heard of the site tho

[@JTVlogs.247]

A little more HP and you could hit 80 for sure

[@gabrielbanta5098]

Have ou tried putting in race gas? Like q16, x85, ignite 90, methanol, 110, or t2. They make more power than pump gas, t2 is a 2 stroke blend from vp and banshees that drag race use it

[@trentbikes]

no

[@gabrielbanta5098]

@@trentbikes would you consider trying it?

[@trentbikes]

@@gabrielbanta5098 if i had money yes

[@thewaffle3945]

im wondering if u could do 1 of those fast bikes with jack shaft kit it would been cool to see 6 gear bike like that

[@trentbikes]

@@thewaffle3945 yea one day

[@JMB676]

It to much centrifugal force to move the jackshaft and all with one of these motors . It’s easier to do what he’s doin with a small gear. You get more speed with this setup then a shack shaft cause so much power get eaten up by the gears.

[@ITZABigCiti]

Keep it up!!!

[@trentbikes]

I will!

[@brwed]

what is that jolt when you are trying to go fast? you pulling in the clutch lever or the clutch slipping

[@trentbikes]

@@brwed clutch slipping to go faster into the powerband at 50mph+

[@Chopperking1977]

Nice build

[@trentbikes]

Thanks!

[@loganflips6420]

This is madness!!! But i love it. I want to motorize my mountain bike turn it into some sort of dirt bike but i want to put a rack as well so i can transport my stuff for my business. The only question i have is if its possible to have one that has good power but reliable? Something that i dont have to worry about falling apart every time i ride.

[@theLyzhendricks]

I ride mine almost daily 20 miles with a yd100 motor it's really about how u build them tho build it right and I won't have problems

[@loganflips6420]

@@theLyzhendricks 20 miles is not bad at all!

[@SMX_GMR]

Whats the engine? Did you buy it on smolik performance site?

[@trentbikes]

no. 70cc athena sport cylinder kit

[@joneserupinsmoke9161]

UR ripping bro 👍👍 what engine is that?

[@trentbikes]

70cc athena sport

[@motorizedbicyclenation53cu90]

Had myself a chinadoll that went 59.5 mph not gonna share the secret on how I got it there but it was scary af on basic wheels no disc brakes just a coaster brake that didn’t do anything

[@trentbikes]

@motorizedbicyclenation53cu90 wdym secret? It's not even a secret. All it takes is upgrades and mods like a good pipe, head, carb, and porting to the cylinder, then smaller sprocket.

[@SoLoCruizer]

That's fast asf brody 💯💪🏼💨💨💨💨

[@luizroberto6915]

Hi, what is bore and stroke piston? You increase the compression ratio and advanced the ignition? What rpm is it reaches? Thanks.

[@trentbikes]

47.6x40, its just 0.8mm squish gap with more than 6cc combustion chamber head and I have the ignition r*tarded actually, just in case. Thinking about advancing it more.

[@virdun]

@@trentbikes what engine is that and what are the mods done?

[@LoganBlackwell-yx6jd]

😂 officer its 50 cc i swear

[@fla.youngan7086]

I need help on throwing a 80cc motor bike motor on a pocket bike

[@willowgateslandscaping4778]

Is my caculator off if it is trying to tell my I need to make two 3/8 holes at 12.5 mm heighth? Also where do I drill them? Between the other holes or what?

[@willowgateslandscaping4778]

It's an avenger 85 from cmb

[@ELISRACINGTEAM]

Great job

[@trentbikes]

ty

[@HarrySpotter-vz8ch]

Ngl surprised that piston and crank arm are working over time

[@LucianosMindOverMatter]

This is Awesome

[@trentbikes]

ty

[@motorunto775]

hey guys i"m really wanting a engine but have no clue what one to get but i realy want to get his so i cant go wrong does anyone know what he's using

[@jamescahill-y4p]

what size is the rear sprocket?

[@trentbikes]

36T for 60mph, 28T for 70mph+

[@jonny69420]

Do you recommend Barry bike stage 4 engine?

[@trentbikes]

@@jonny69420 I don't use the site. You can get a cheap one for $100-150 with about the same performance as the overpriced $300 ones.

[@jonny69420]

@@trentbikes what website should I use to get a good performance engine?

[@jonny69420]

@@trentbikes and what kind of sprocket should I use for the engine chain? For higher speeds

[@Евгений-й9р5ы]

Ракета !!! 👍👍👍👍

[@angrymaddoxmiller5317]

Man, I love your videos. It’s funny when you fart. 😂😂😂 I bet one day you’re hit 80.

[@trentbikes]

@@angrymaddoxmiller5317 oh 80 should be easy to hit with a more powerful engine. Maybe porting to the athena. One day I'll most likely hit 100 haha

[@matthewfredrickmfkrz1934]

You could've heated the crank and bent it with a pipe to clearance on the bike

[@trentbikes]

Don't have a strong enough torch for that. Better off cutting it off almost all the way then bending then weld it

[@matthewfredrickmfkrz1934]

@@trentbikes try heating it with the welder

[@Spooky-z8r]

Be careful brother. I have been experiencing new stuff to buy I am backing off because I want to at least love some more...

[@Carzarecool4]

Can I have details on the handle bars?

[@trentbikes]

@@Carzarecool4 theyre clip on handles.

[@melloWaffen]

are you still using a stock rod bearing?

[@trentbikes]

no

[@melloWaffen]

@@trentbikes i upgraded to the “high speed” bearing, is that what you have, its like a copper color

[@trentbikes]

just a cheap $4 bearing I found. KT162212 Caged Needle Roller Bearing 16x22x12mm, simplybearings site. They actually seem to be holding well so far, surprisingly.

[@melloWaffen]

@@trentbikes nice

[@jimwoodrow1964]

Awsome video. Question about your stihl pumper carb. I put my pulse port in the middle of crankcase below carb according to a Guage it's pulsing 25lb push and pull but I can't get carb to work. I tried a vacuum fuel pump and it will pump gas. I've adjusted popoff pressure in carb to 12lb but still won't run. Junk carb it's a real tillitson hl324. Any guess?

[@trentbikes]

try choking the carb. it may not be feeding enough fuel, so adjust the screws to feed more fuel

[@jimwoodrow1964]

@@trentbikes Tried choking. Tried mixture screws at 1 turn idle and 1 1/2 turns for high at 1/2 turn increments all the way 4 turns out.

[@trentbikes]

@jimwoodrow1964 take apart of your carburetor and make sure nothing is ruptured or clogged.

[@joshuamoon8442]

Hey buddy how about shooting a link where you got those rims so cheap.

[@trentbikes]

Gemini bicycle products on google

[@johnpalmer2836]

What kind of engine is that and how do I aquire one of those that's the coolest shit I ever seen

[@trentbikes]

70cc athena cylinder kit

[@matthewpeter4034]

Bro whats the specs on your engine and how do i get mine to rip like that

[@trentbikes]

70cc athena sport

[@Spooky-z8r]

Give the link for the Genius wheel set...

[@trentbikes]

look up gemini bicycle products on google

[@SHWELL11]

What tires do you use for these setups? The Speeds you can reach sounds like they exceed anything you can find in bicycle sizes. Also, just an idea, but some footpegs on the rear axle would be a nice perch for your feed on speed runs.

[@trentbikes]

Yeah, got some pegs coming today. also thickslicks i think

[@michaelbrinks8089]

I'm hoping bike tire companies will start making tires for ebikes that are tougher & made for higher speeds.

[@Chopperking1977]

Wow. I like it. !!!!

[@brucegillies1694]

People are working on banning motorized bicycles because of people that are pushing the limits and not being safe !

[@trentbikes]

@@brucegillies1694 I'm not the only one.

[@kingpinec]

Badass!!

[@trentbikes]

thanks

[@wrathofravage2428]

16:26 pretty close there

[@trentbikes]

Nope not at all

[@Debo_ThePlayer]

what engine is used

[@trentbikes]

70cc athena sport hybrid

[@justanothermotorizedbikech5138]

Damn Trent you’re flying!! Universe was saving you past those cops😆stay safe man🚲💨💨

[@trentbikes]

I honestly want to go back to the intersections and go fast, see what happens with the cops, but I don't think I'll do it lol