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SHIMANO  |  SKU: CR3484

BB-UN300 BOTTOM BRACKET - ENGLISH, 68 X 113MM SPINDLE, SQUARE TAPER JIS

$15.99 USD
Size

Please Note:

Effective December 16th, 2025, we will no longer accept online orders for delivery or pick-up at stores, with the exception of JAX gift cards. Orders placed on or before that date will still be honored. Please see our announcement page for full details: https://jaxgoods.com/pages/website-announcement

Description

Shimano BB-UN300 Square Spindle Bottom Brackets
* Fits JIS square-taper cranksets
* Crankarm fixing bolts sold separately
* Hollow spindle
* Spindle Interface Type: Square Taper JIS
* BB Shell Width (mm): 68
* Bottom Bracket Shell I.D.: 1.37
* Spindle Length: 113
* BB/Frame Interface: English
* Defined Color: Black

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