Feature:
1. Wide Application: The 420 chain front rear sprocket kit is specially designed to fit 50cc to 125cc dirt bikes, mini bikes, ATVs and 4 wheel go karts.
2. Sprocket Size: This sprocket drive gear is 0.235in thick and has 17T. Center mounting holes are 1.18in apart and are compatible with 17mm engine countershafts.
3. Heat Treatment: To make the sprocket , the sprockets are heat treated, which increases the strength of the sprocket, making it resistant to wear and tear very well.
4. Gear Curve Design: The sprockets also have an upgraded gear curve that helps reduce transmission friction, which helps extend the life of the chain.
5. Ideal Replacement: This kit is designed to replace the old one in different power sport vehicles using 420 chain sizes. The front sprocket is supplied with mounting screws.

Specification:
Item Type:420 ChainSprocket Kit
Material: 45 Steel + Steel Alloy
Rear Sprocket: 420 37T 155mm
Front Sprocket: 420 17T 73mm
Application: Complete chain and sprocket set designed to replace old damaged chain and sprocket sets from originals to get your riding going again.
Fitment:
Fit for 50, 70, 90, 110, 125cc Dirt Pit Bike and Mini Bikes, ATVs, Go Kart
Replacement for Coolster
Replacement for Apollo
Replacement for SSR and more

Package List:
1 x 420 Chain
1 x 155mm 37T Front Sprocket
1 x 420 17T Rear Sprocket
1 x Fixing Plate
2 x Screw

Note:
To avoid receiving the wrong product, please take the time to check and confirm the correct shaft, chain size and number of teeth before placing an order