Universal 420 Chain Sprocket Kit 420 Chain 155mm 37T Front 420 17T Rear Sprocket Universal for to Dirt Mini Bikes ATV Kart

Feature: 1. Wide Application: The 420 chain front rear sprocket kit is specially designed to fit to dirt bikes, mini bikes, ATVs and 4 wheel 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 stronger, the sprockets are heat treated, which increases the strength of the sprocket, making it to wear and tear very well. 4. Gear Curve Design: The sprockets also have an upgraded gear curve that helps reduce 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 Chain Sprocket 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, Dirt Pit Bike and Mini Bikes, ATVs, Kart Replacement for Coolster Replacement for Apollo Replacement for SSR and more Package List: 1 x 420 Chain1 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

• 【Wide Compatibility】: Our 420 chain front rear sprocket kit is expertly designed to fit a wide range of vehicles, fit for 50, 70, 90, 110, Dirt Pit Bike and Mini Bikes, ATVs, Kart. Replacement for Coolster. Replacement for Apollo. Replacement for SSR and more.
• 【 Sprocket Sizing】: Crafted with specific measurements in mind, this sprocket drive gear is 0.235in thick and houses 17 teeth. Center mounting holes situated 1.18in apart provide compatibility with 17mm engine countershafts to enhance fitting. Rear Sprocket: 420 37T 155mm. Front Sprocket: 420 17T 73mm.
• 【Superior Strength from Heat Treatment】: Our chain and sprocket kit undergo a heat treatment process to bolster their strength, making them highly to wear and tear, and ensuring long-lasting durability even under rigorous usage.
• 【Enhanced Gear Curve Design】: Our mini bike chain feature an upgraded gear curve that optimizes performance. This innovative design reduces friction, which in turn extends the lifespan of the chain, boosting your vehicle's efficiency and dependability.
• 【Idyllic Replacement Set】: This mini bike sprocket kit is a comprehensive solution designed as a replacement for power sport vehicles using 420 chain sizes. The front sprocket comes supplied with mounting screws for an easy and worry- installation experience.