420/428 Chains 31T/37T/41T/48T 52mm Sprockets Rear Back Sprocket Cog Fit For Motorcycle ATV Quad Dirt Pit Bike Moped Accessories

High-concerned chemical：None Special Features：Sprockets Item Diameter：5.2cm Item Weight：1kg Item Height：0.07cm Item Width：0inch Item Length：0inch Model Name：420/428 Origin：Mainland China Item Type：Sprockets Material：steel Installation aperture：6.8cm

High-concerned chemical: None Special Features: Sprockets Item Diameter: 5.2cm Item Weight: 1kg Item Height: 0.07cm Item Width: 0inch Item Length: 0inch Model Name: 420/428 Origin: Mainland China Item Type: Sprockets Installation aperture: 6.8cm