Shimano BB-UN300 Bottom Bracket – English, 73 x 123mm Spindle, Square Taper JIS

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Amazon Price: $18.00 $17.11 You save: $0.89 (5%) (as of November 7, 2025 5:26 am – 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.

Brand: SHIMANO
Manufacturer: Shimano

Features

Crankarm fixing bolts sold separately
Hollow spindle
Spindle Interface Type: Square Taper JIS
Bottom Bracket Shell I.D.: 1.37

Manufacturer Info

PartNumber: EBBUN300C23X

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