Description
Shimano BB-UN300-73-118
The Shimano BB-UN300 is a square taper bottom bracket designed for compatibility with JIS square-taper crank sets.
The specific model with a 73mm shell width and 118mm spindle length offers the following features:
- Bottom Bracket Shell Width: 73mm
- Spindle Length: 118mm
- Spindle Interface Type: Square Taper JIS
- BB/Frame Interface: English threading (BSA)
- Bearing Type: Sealed cartridge bearings for smooth operation and durability.
- Crank arm Fixing Bolts: Not included. Shimano FC-E6000 bolts are recommended.
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