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

It worked perfectly I put it on a 2025 boom Vader it took me like 10 minutes to put on and actually added some life to my first gear and raised my top speed a little

I did my research I have a book Vader 125 cc I seen all kinds of people use there stock chain I tried to use mine it doesn’t work had to buy a brand new chain which was planning on doing anyhow but I’ve had my bike for like a month so I bought this so I could have more travel before having to shift gears but it mast be a certain year cuase mine is a 2026 and there no way at all it’s going to fit

Works great. Just as intended. Takes two seconds to install then adjust the chain

Definitely an improvement from the stock 14 T sprocket on my Grom clone, helped to bring down the RPMs while going fast and still has a good balance of torque, I've had no issues so far, I've ridden 900 miles on it and it seems to be very good 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

Definitely a speed increase highly recommend

Don't see any issues with the part itself, however it will not fit a brand new xpro125 until the chain loosens up. Fit the transmission no problem.

Dose not fit 2021 ttr 110

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.