ICONSPORTSS 428 Chain and Sprocket Kit – 41T Rear, 15T Front, 108-Link

This ICONSPORTSS drivetrain kit includes a 428 chain with 108 links, a 41-tooth rear sprocket, and a 15-tooth front engine sprocket. The steel rear sprocket has a 76 mm inner diameter and 65 mm mounting-hole spacing. The front sprocket fits a 17 mm shaft and has a 30 mm mounting-bolt distance. The source lists compatibility with pit dirt bikes and ATVs using 50cc to 160cc engines, including SSR, CRF50, CRF70, XR50, Apollo, and Taotao models.