Product Description
Not made in China! Made from High Carbon Steel SAE 1045/49/SCM415. Fits 420 Chain. See picture for exact measurements. Check your current tooth count before ordering! Larger size sprockets in the rear give you more take off power with less top speed. Smaller rear sprockets give you more top end speed with a slower take off. Larger rear sprocket may require removal or modification of chain and sprocket guard, as well as need a longer chain. Fits many Chinese made "off brand" ATV and dirt bikes with Honda clone type motors. Fits some, but not all Coolster 110 and 125 models. Customers have told us this is the size for Apollo ATVs. We have also used these on Jiangsu Tiking / Kinroad ATVs. We use these sprocket in our shop to modify Taotao 125cc model ATVs with a 420 chain which may include 110B Boulder and some D125 125D models. Fit Kayo Fox 70, Bull 125, and Predator 125. Verify sprocket measurements before ordering. Not all Taotao's will use this 420 rear sprocket, including the 125F1. If this sprocket doesn't fit your applications, simply give us your sprocket measurements and we will see if you have your sprocket. 100's of sprockets available!!! 56 tooth is lower quality than the other sprockets. 37 tooth is stock on Kayo Bull and Predator 125.Product Videos
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Product Reviews
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420 sprocket replacement
Placed an order on a Saturday. 15 minutes later, I received a shipping notification. Top notch parts and service!
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Rear sprocket
It was a pleasure to work with your company i had a little difficulty picking the correct rear sprocket but he helped me threw it and received the correct part
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Rear sprocket
Perfect fit. Did exactly what I needed it to do.
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Rear Sprocket
High quality sprocket. Quick easy mod for the atv!
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2020 Tao Boulder 110
Upgraded a Tao 110 Boulder with this front 42T rear sprocket. Combined with a 12T front sprocket, the 110 has significant acceleration compared to the stock setup that struggled just to get going on flat surfaces. This allows my 7 year old son to take off more smoothly, or accelerate over small inclines. I'm confident that it will allow my son to pull off some decent hill climbs on the trails if he has to. Well worth the price to make the Tao 110 Boulder a better quad. I also purchased the gold 420 chain, and the chain cutter tool to make the installation process very simple.