HIAORS 428 17T 17mm Motorcycle Front Engine Sprocket for 50cc 70cc 110cc 125cc 140cc 160cc TaoTao Roketa Coolster Sunl Lifan Chinese ATV Quad Dirt Bike

This Sprocket is a Must have. Has to be the nicest fit and the value for the money is amazing and the durability it is still going and the function is perfect for My BOOM Vader thanks

Installed easy, well built and gave gtreat topend. I was looking for more topend and it delivered. Showed up fast an easy. Love the new ridability. Definitely recommend.

works fine. high quality.

This really improves speed i was at 40 mph and now 50 mph. It did fit a little loos the down side is it was bigger than i thought so i had to loose the chain a lot and take the engine cover off. I still really recomened it really improves. 4 out of 5 its a must

Old one have played. New one fit good with no played on grom clone

Definitely improves the bike’s performance. The 14 tooth front sprocket that came on the bike might’ve been useful for people who wanted to do wheelies, or start up a very steep incline with a passenger on the back, but I can’t think of anything else. I had to up shift into second gear at 6 miles/hour. Consequently, I never used it, even starting out from a stop up a fairly steep incline. I would just start out in second year. This larger sprocket makes first gear more useful. Also, the bike will go up to 35 mph (speedometer reading 45 mph) without coming close to red lining the tachometer. Yes, the speedometer on the Boom Vader 125 cc motorcycle reads 10 mph fast at 35 mph according to GPS (speedometer reads 45 mph).

Does not fit with my ssr 70 so the functionality is not good but I’m pretty sure if this did fit it would be good value for your money

Fit perfect, just had to loosen my chain and I gained a good 7-10 mph could definitely feel a difference and would recommend.!!