Bottom Brackets & Parts
Shimano UN300 Square Taper English Bottom Bracket (Silver) (BSA) (68mm) (127.5mm)
Original price was: $17.10.$5.13Current price is: $5.13.
Availability: 13 in stock
Shimano BB-UN300 Square Spindle 68mm Bottom Brackets
Features:
- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
Specifications:
Frame Interface: BSA/English Threaded
Spindle Interface: Square Taper JIS
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Lengths: 107mm, 110mm, 113mm, 115mm, 117.5mm, 118mm, 122.5mm
Color: Silver
Weight: TBD
This product is expected to become available for purchase on Sunday, November 1, 2026
| Brand | Shimano |
|---|
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