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Shimano, BB-UN300 D-EL, Square Taper BB, British, 68mm, 127.5mm, Silver

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$18.71

$ 7 .91 $7.91

In Stock



vabm
Reviewed in the United States on February 28, 2025
I was replacing a broken bottom bracket with plastic threads and thought I could save a few bucks by trying some off-brand options. Big mistake. I ordered three different bottom brackets from Amazon with the same specs, but none of them would screw onto my frame. The threading was off every time. The only one that worked was Shimano. It fit perfectly without any resistance. If you want something reliable and precise, don’t waste your time with cheap alternatives. Stick with Shimano.
Isaiah R.
Reviewed in the United States on September 20, 2024
Love the feel. It does feel smoother after you install so don't freak out if it feels difficult to move when you first open it. Also double check that you have it on the right side and that you are turning it the right way.
yellow daisies
Reviewed in the United States on August 27, 2024
Brilliant! I had the old style loose bearing BBThe drive side was LONGER on the spindle to make room for the cranksetBut this replacement fit perfectly and spaced out the crankset without rubbing the frame : )
名無しの権兵衛
Reviewed in Japan on July 2, 2023
軽い!良い!走行に文句無し!ただ、左の取り付けに苦労したが交換して大満足!
ina
Reviewed in Japan on December 23, 2020
息子のMTBの部品交換です。もとはカップアンドコーンのBBでしたが、シールドタイプに交換しました。問題なく交換でき、スムーズに踏めてます。