sthus 40mm Chrome Silver Muffler Exhaust Pipe for 49cc 50cc 60cc 66cc 80cc Motorized Bicycle

Very easy to install, worked great!

Buen producto

Exhaust worked great, and had a great finish before I modified it to fit my moped, price is right

muffler was rattling when arrived, after installing muffler engine overheated after a 2 mile ride on a 100cc, yd100, 50mmx40mm piston high hole, 12mm piston pin, long crank,36 tooth sprocket, 26in frame, mag wheels. engine would bog down due to back pressure build up at half rpm or higher under load. heat built up extremely fast causing my piston to bind and seize motor after coming to a stop at idle. i am using 50/1 fuel ratio and not running lean. after cutting expansion chamber with baffles off at weld on pipe(and a little sanding/grinding of the piston/cylinder walls to fix light scoring from seizure) i solved the issue and engine runs cooler, more power, more torque, and louder aka cars stop pulling out in front of you. definitely NOT A 100cc MUFFLER.2-stroke engines do not need back pressure anyways just something to keep the dirt and bugs out of your engine while running.

Had to modify it a bit by angling the exhaust but fits.

didn’t fit great, also didn’t seal very well

There was a Defect in the casting of the plate but did not stop from working. Had one that were weld on at the wrong angle too. Idk you get what you pay for love riding bike thow for year.

Would buy again