Description
SHIMANO – Square Type Bottom Bracket – MTB – Standard Structure
Square Type Bottom Bracket
- SHIMANO quality/performance cartridge bearing square bottom bracket
- Better chainline stability with chain line stabilizer
- 3 structures available
- Standard, E-type, chain case options
- Adapter material: Aluminum
Specifications :
| MODEL NO | BB-UN300 |
|---|---|
| SERIES | SHIMANO |
| Remarks | * w/ Crank arm fixing bolts spec. only. ** w/ Crank arm fixing bolts spec. is available |
| Structure_Standard | ? |
| Axle length / shell width_107_68mm_(BC1.37) | ? |
| Axle length / shell width_LL113_73mm_(BC1.37) | ? |
| Axle length / shell width_XL118_73mm_(BC1.37) | ? |
| Axle length / shell width_D-NL (122.5mm)_68mm_(BC1.37) | X ** |
| Axle length / shell width_D-EL (127.5mm)_68mm_(BC1.37) | X * |
| Axle length / shell width_LL123_68mm_(BC1.37) | ? |
| Axle length / shell width_LL123_73mm_(BC1.37) | ? |
| Axle length / shell width_LL113_68mm_(BC1.37) | X ** |
| Axle length / shell width_MM110_68mm_(BC1.37) | X ** |
| Spindle_Square type | ? |
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