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Shimano Chaincase BB-UN300-K Square Taper Bottom Bracket 68mm Shell / 127.5mm (D-EL) Spindle Parts - Bottom Brackets

Chaincase BB-UN300-K Square Taper Bottom Bracket

$24.00

The Shimano BB-UN300-K is a square taper JIS bottom bracket specifically designed for use with a chaincase. This reliable component ensures smooth rotation and a stable drivetrain interface for MTB configurations.

  • Precision Fitment: This 68x122.5mm MTB Double option includes a 0.7mm spacer to ensure proper alignment and clearance within the bottom bracket shell.

  • Chaincase Compatibility: Specifically engineered as a "K" type model, making it the correct choice for bicycles equipped with a full chaincase.

Size168mm Shell
Size2127.5mm (D-EL) Spindle

From per month with Shop Pay i or with Affirm i

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30-day returns on unused items

Price matching on identical items from authorized Canadian retailers

Product images may vary slightly from final specifications


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