Shimano BBUN300 Square Tapered Bottom Bracket (68x123)

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Shimano BBUN300 Square Tapered Bottom Bracket (68x123)

₹1,110

Buy at unitedbycycling.com

Expert Pros

+Cartridge bearings for durability
+Improved chainline stability
+Available in multiple structures

Expert Cons

−Square taper standard is older

The Shimano BBUN300 is a square-tapered bottom bracket with cartridge bearings, designed for MTB use. It offers improved chainline stability and is available in standard, E-type, and chain case options.

Details

groupset: Shimano Tourney
intended use: mtb
bike type: frameset
width mm: 123
gender: unisex

First tracked at ₹1,110 on 2026-08-05. Price history builds up as we re-crawl.

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Shimano BBUN300 Square Tapered Bottom Bracket (68x123)

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