Driven Racing 428 Rear Sprocket compatible with Grom and Monkey 125

Driven Racing EVO TECH rear sprocket to view our Gear Ratio Chart!
Available in 34, 35, 36, 38, 39, and 40 Tooth
Case Hardened
Fits #428 Chain
Inner Diameter: 58mm
Diagonal Bolt Spacing: 89mm
Made in USA!
SUPPORTED MODELS: Fits and compatible with Honda CR 80R ('85), Fits and compatible with Honda CT 70-3Spd ('69-'94), Fits and compatible with Honda Grom 125, Fits and compatible with Honda XL 80S ('80-'86), Fits and compatible with Honda XR 70R ('97-'99), Fits and compatible with Honda ZB 50 ('88), Various unlisted makes/models