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Shimano BB-UN300 Square Tapered Bottom Bracket
₹990
Available at bumsonthesaddle.com
Expert Pros
- +Durable cartridge bearing
- +Maintains constant chain line
- +Suitable for BSA threaded frames
- +Hollow spindle design
Expert Cons
- −Crankarm fixing bolts sold separately
The Shimano BB-UN300 is a square tapered bottom bracket designed for frames with BSA threading and 68/73mm shell widths. It features a JIS square taper mount and a hollow spindle for a good balance of stiffness and weight. A stabilizer ensures a constant chain line, making it a reliable choice for many bicycles.
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Shimano BB-UN300 Square Tapered Bottom Bracket
₹990