Shimano BB-UN300 Bottom Bracket Eng Square Taper JIS
| Availability: | In stock (3) |
The Shimano BB-UN300 is a reliable square taper bottom bracket designed for JIS-compatible cranksets. This durable component features a hollow spindle construction for lightweight performance and smooth rotation.
- Fits JIS square-taper cranksets
- Hollow spindle design for reduced weight
- 68mm shell width x 118mm spindle length
- Crankarm fixing bolts sold separately