SHIMANO - Square Type Bottom Bracket - MTB - Chain Case Structure
Square Type Bottom Bracket
- SHIMANO quality/performance cartridge bearing square bottom bracket
- 2 structures available
- Standard and chain case options
- Adapter material: Resin
PRODUCT SPECIFICATIONS
MODEL NO | BB-UN101-K |
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SERIES | ACERA T3000 Series |
Remarks | * w/ Crank arm fixing bolts spec. is available. ** w/ 0.7 mm spacer |
Structure_For chain case | ✔ |
Axle length / shell width_D-NL (122.5mm)_68mm_(BC1.37) | X * |
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Axle length / shell width_LL123_68mm_(BC1.37) | X ** |
Spindle_Square type | ✔ |