SHIMANO Square Type Bicycle Bottom Bracket 73Mm -Open Box
Shimano Square Type Bicycle Bottom Bracket – BSA 73MM, SPINDLE: LL113 – EBBUN300C13X. STANDARD BOTTOM BRACKET, BB-UN300, SPINDLE: SQUARE TYPE, SHELL: BSA 73MM, SPINDLE: LL113, W/O FIXING BOLT. Original Product.