- Suitable for M7100/M8100/M9100 Bottom Brackets.
- High-strength aluminum alloy material, greatly improved hardness and performance.
- Double O-ring design solves the problem of lock ring damage caused by tool shaking during disassembly.
- CNC finishing, precise fit, fine workmanship, precise fit between internal teeth and lock ring.
- Size: 46*46*26mm
- Weight: 41g
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