HIAORS 428 17T 17mm Motorcycle Front Engine Sprocket Compatible with 50cc 70cc 110cc 125cc 140cc 160cc TaoTao Coolster Apollo Coleman Boom Vader Roketa Lifan ATV Quad 4 Wheeler Pit Dirt Bike Parts

fit perfectly on my pit bike, only had issues with the copper bracket, was a hair too small but i just used the original.

Perfect fit for Boom Vader 125cc, no sprocket cover mod or new chain needed. Went right in. Speed before change 51mph, after 63mph very tucked and slightly down hill. Took less than ten minutes to put on.

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).

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

Our son had me purchase this for his 2024 Honda CRF 450 after he wore his out and loves it! Said it went on perfect, works great and looks good with the red, matching his bike. Great buy!

Fast shipping seems to be made well haven't installed yet

Does not fit Yamaha TTR 125 as listed

Ordered wrong size so I can’t use it but looks to be of good quality

As I said it was what it said...

parfait, fit sur un apollo 110cc , gagné environ 20km/h. Mais tu dois acheter une nouvelle chaine. Que change la pigions arrière.

Muy bien todo

se la puse a una ns125 tube que adelgasarla un poco con el esmeril pues es muy ancha y no podia poner el seguro, pase de 14 a 13 dientes, perdi 7 kilometros arriba pero tiene un manejar muy comodo ahora.