| MODEL NO | BB-UN100 |
| SERIES | ALTUS M2000 Series |
| Remarks | * w/ Crank arm fixing bolts spec. available |
| Structure|Standard | ✔ |
| Spindle|Square type | ✔ |
| Axle length/shell width (mm)|D-NL 122|68 (BC1.37) | X* |
| Axle length/shell width (mm)|LL123|68 (BC1.37) | ✔ |
| Axle length/shell width (mm)|LL123|73 (BC1.37) | ✔ |




