SHIMANO BB-UN300 Bottom Bracket – English, 68 x 122.5mm Spindle, Square Taper JIS, 50mm Chainline

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Amazon Price: N/A (as of May 29, 2026 3:19 pm – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

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Brand: SHIMANO
Manufacturer: Shimano

Features

Fits JIS square-taper cranksets
Crankarm fixing bolts sold separately
Hollow spindle
50mm chainline

Manufacturer Info

PartNumber: EBBUN300B23X

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