WOOSTAR Motorcycle 420-16T Front Sprocket 17mm Replacement for 50cc 70cc 90cc 110cc 125cc Dirt Pit Bike Mini Bike ATV 4 Wheeler Moped

Did what it was suppose to

Works well

Just what i needed.

Excellent product, made the ol SSR SR70C much more responsive on the bottom end. Pretty sure these Chinese bikes are just clones of the major name brand Japanese bikes. This sprocket paired with a larger than stock carburetor made the bike run better than new and will even pull the front tire up now! Do not use your stock retainer, just a couple of washers and the provides snap ring fit perfectly. The factory retainer will not clear the chain nor will the bolts that holt the retainer in clear the chain. Pictured is the factory 14 tooth. Smaller sprocket = less room for bolts.

It was a pretty simple install maybe 20 mins if you have a decent axle adjuster if not your gonna have to do a lot of un screwing and screwing just to move the wheel back and fourth. I have a Grom 2020. It made a good ride an even better ride. Don’t forget some thread lock, I’ve heard of them messing up.

It worked good to keep the front end down on the Kidd’s lt50 but now it’ll do 50 plus if you have week n half to get it there

Would've rated it 5 stars but had to put the old sprocket bolts to make it fit due to this sprocket not having any bolts ect the bolts from stock sprocket grind with the chain if it were to come with allen wrench bolts would've been fine but would either have to grind the bolts down or just look for some allen bolts heard they work too I put it in yesterday and let it run to test it out but bolts grinds with the chain and do a ugly bump and leads to screws to loosen but overall just the bolts are the main problem not the biggest issue to fix but has good quality and comes with snap on ring

Good fit for an older 1971 Honda SL100 I'm restoring - I like that it shows the chain size #420 and the teeth count, small detail but nice - fits good, comes with the cover/holder and the 2 bolts.

Fitted great on my 2020 sinnis terrain

Fitted to my KRUZ RT 150 perfectly no issues no problems.If you need a 420 18T 17mm Spline I'd recommend this product. Images on request

On time, cnc made well done.

No clamping washer or bolts as showed in picture

Good quality fits perfectly i recommend someone buy it very strong metal