CHAIN WHEEL

ZP-A76-A1
CRANK 曲柄 A76-170mm
(Alloy Forged 6061-T6)
CHAIN RING 链轮 34T(steel)
SPIDER 爪 BCD 94mm
CHAINLINE 链线 50mm
COMPATIBIL ITY 变速兼容 3*9S/10S
B.B.T 中轴 Chrome molybdenum steel