428 Chains 37T/40T/41T/43T/48T 37MM-76MM Motorcycle Chain Sprockets Rear Back Sprocket Cog For 110cc 125cc 140cc Dirt Pit Bike

High-concerned chemical：None Special Features：Chain Sprockets Item Diameter：4.8cm Item Weight：0.93kg Item Height：0.65cm Item Width：15.5cm Item Length：15.5cm External Testing Certification：iso9001 Model Name：428 37MM/41MM/48MM/52MM/58MM/76MM Brand Name：LeSiRacing Item Type：Sprockets Material：Metal Origin：Mainland China

High-concerned chemical: None Special Features: Chain Sprockets Item Diameter: 4.8cm Item Weight: 0.93kg Item Height: 0.65cm Item Width: 15.5cm Item Length: 15.5cm External Testing Certification: iso9001 Model Name: 428 37MM/41MM/48MM/52MM/58MM/76MM Brand Name: LeSiRacing Item Type: Sprockets Origin: Mainland China