REAR SPROCKET 420 50T ERGAL BK

Sunstar is the largest OEM and aftermarket supplier of motorcycle and ARV sprockets in the manufacturing world for every major Japanese motorcycle builder since 1946

Computer-designed weight reduction holes for the best combination of lightness, strength and stability

Exclusive tooth-valley design provides 50% better chain contact area for the best power transfer possible

Cleaning grooves added at bottom of tooth area