Product Detail 產品詳情 - Bicycle Cluster
Bottom Brackets series
G-MA ENGINEERING CO., LTD.for MTB or Road bike CNC machined AL-6061 T6 cup Compatible: Shimano 24 spindle / SRAM gxp / SRAM DUB / Other bearings : Steel / ZVL / Ceramic
for MTB or Road bike CNC machined AL-6061 T6 cup Compatible: Shimano 24 spindle / SRAM gxp / SRAM DUB / Other bearings : Steel / ZVL / Ceramic