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Shimano BB-UN300, SPINDLE: SQUARE TYPE, SHELL: BSA 68MM, SPINDLE: 122.5MM | |||||
| Sealed cartridge assembly MTB DOUBLE BOTTOM BRACKET, BB-UN300, SPINDLE: SQUARE TYPE, SHELL: BSA 68MM, SPINDLE: 122.5MM (LL123), W/O FIXING BOLT | |||||
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