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 |
|---|---|
| SERIES | ACERA M3000 Series |
| Remarks | * w/ Crank arm fixing bolts spec. is available ** w/ 0.7 mm spacer |
| Structure_For chain case | ✔ |
| Axle length/shell width (mm)_D-NL 122_68 (BC1.37) | X * |
|---|---|
| Axle length/shell width (mm)_LL123_68 (BC1.37) | X ** |
| Spindle_Square type | ✔ |