Prowheel Bicycle crank sprocket 104BCD MTB Bike Square Hole 170mm 175mm Crank 32T 34T 36T 38T 40T 42T 44T 46T 48T 50T 52T Round Narrow Wide Chainring

Material: aluminum alloy
Specification: BCD 64mm/104mm
Compatible: single, double Chainring
Color: Black
Crank:170mm/175mm
Sprocket:30T/32T/34T/36T/38T
Note: Equipped 64BCD screw The material of the 30T sprocket is 7075 aluminum.