It fits!!......barely. The BT100 Version 2 on a cranny. 100cc 26' #100cc

[Teddyscrapsandbuilds]

Got my bullet train electric start completely rebuilt with a billit machined liquid cooled head forged pistons crank and Conrod were already pretty strong double spark plug ports 2 stroke EFI & a smart carb water pumps are electric too so no power lose as if it were a crank driven pump & alternator already uses crank power amazon exhaust with expansion chamber and a welder shop did all the measurements for chains and gears to gear the engine to the crank peddles cut the peddles and cranks off so its balanced & just a gear welded a stationed gear from the engine to the crank and was able to use a regular bike chain from there with a mountain bike 6 or 7 speed transmission ran on ethanol with 2 stroke oil never could dyno it but it blew up the CVT clutch after a burnout drove it but was scared to reach top speed but id say i hit probably almost 90 mph and was 70% throttle at like 6, 800 rpm running at like 190 degrees after a warmup id say maybe making like 15/20 hp had a cheap engine temperature tack and rpm reader you can get for like $15 or less on Amazon its pretty accurate just gotta wrap a wire around a spark plug and go into the settings and set it for 2 stroke engine

[lucajo]

I almost want one...but its bikeberry.

[badtripmoses]

I'm about to attempt to build one of these so I can ride it to work!!

[Matthew-wjcm]

Sounds like it has nothing on the Phantom, just from the lack of low end you can hear even on a 44t. Bore it out to 52mm Alex, port the heck out of it and then she might have a chance😊

[stephenjohnson]

Try telling a cop it's under 50cc😂

[lachlanbruce]

Will be hard to notice a visual performance with that 44t sprocket but I’m sure it will be better than the yd100 where can I get this kit in the uk as I’m not keen on paying USA shipping costs thanks have fun

[jamesbondo]

WHERE'S IT AT I'M DYING TO SEE IT IN ACTION!!!

[jeffwalters]

Nothing wrong with a yd100 gotta b smarter than the engine lol

[Caspr.aka.Droid.]

I don’t know if it’s a spark plug issue or what but sometimes I have an issue with getting it to open up all the way it seems like it will get to about 20 and just not wanna hit the next year. What’s the issue when I go up a slight hill, it seems to pick up then it really goes. It seems like it will just ruband get faster and faster once I start going up a little hill, but when I’m on a flat ground, it barely wants to hit over 20 miles an hour and I know this motor can go away faster than that there’s times like I say it does. What’s the issue here

[JulianJaimez-ebjo]

I do have questions on gearing motor and jetting. Im interested in a bike but I need a motor that can handle 40 mile rides every day and can do speeds of at least 40 mph note i weight 230 right now loosing weight slowly lol

[calebc.staley]

I just finished my Huffy 26in beach cruiser and my rear wheel is not turning. Any suggestions on what I did wrong on the rear wheel?

[levidesmit]

Put a better pipe under it (with a muffler) to get the same amount of power as a normal 50cc moped engine and put a real carburettor on it. Maybe Port it a little bit. More compression.

[randombikecontent]

enough torque to reliably launch without pedaling??

[HighMileageOffroad]

Sounds super rich put a tuned mikuni vm18 on it!

[ZuraMotorized]

The first words he said was what she said

[Blackskills]

How to make it less noisy? This is the problem I think! I don't want to annoy people with the sound of it ! Plus the sound is annoying to me as well!

[shawnwetzel]

I just sent you a friend request on FB. I would like to see if you could do some work on a bike I have.

[mikhaelmoore]

Im so disappointed with this engine kit. Clutch was seized on mine, gas leaking from both the on off valve and carb, chain tensioner breaking, and several missing bolts and screws buyer beware