DIYMINIBIKES

Sunstar Rear Sprocket #420 32 Tooth (1210-0778)
Sprocket details:
#420 chain
32 Teeth
Center hole ID: 53mm (2.08″)
(4) mounting holes 49mm (1.93″) center-to-center apart
Mounting holes: 69mm center to center across
Mounting hole diameter: 11mm
Constructed of high-quality, aerospace grade 7075 T-6 aluminum
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
Hard anodized coating for added durability and a superb finish
Cleaning grooves added at bottom of tooth area