TC-MotorMotorcycle YX110 YX125 Transmission Gear Box Main Counter Shaft Parts For Chinese YX 110cc 125cc Engine Pit Dirt Motor Bike

Fit my bike, works perfectly, worth the money, pretty easy to install if you know what you’re doing.

Took a chance fixing a broken mini quad.Only used one gear, but it was a direct drop in.(Original was a single speed with auto clutch)Still running perfectly after a summer of hard use.Get the gasket set, oil cooler and high volume oil pump, keep your pit bike, mini quad running forever.

Would buy again. Fit nicely in my Tao 110cc dirtbike.

I like the fit and finish of these gear sets. The gear set in the picture is laid out wrong. If you flip either one over you can better see how the gears mesh. I am building a little motor scooter with a 212cc 7.5 HP gasoline engine. A variable diameter pulley belt drive torque converter (Comet Series 30) will provide a 3:1 ratio for low speed starts, and a final ratio of 1.1:1. I want to be able to do a little hill climbing in the boonies, so I am making a two speed final drive box out of the transmission gears. Low gear will give a 2:1 ratio, and high gear will give almost a 1:1 ratio. Since the engine turns CCW, the cylinder is usually pointed towards the rear, but with a gear to gear connection the final output will be reversed, so I can mount the engine with the cylinder head pointing forwards like most commercially built motor scooters and bikes. I can also use the low gear for quicker takeoffs, and the higher gear for cruising at 40 to 50 mph. Essentially, when I am done, I will have a six speed equivalent motor scooter.

Used this and a gasket set to fix my son's ssr110 dirt bike. works great.

fit good did the job hopefully it holds up well but feels like strong material

Bought for my Apollo x18 125cc pit bike and it was exactly what I needed. Great price right product.