Reviews over the

Shimano BB-UN300

Positive introduction to this shop.

Pros & Cons

japanese quality bearings

The BB-UN 60 was no longer available, so ordered the 300. Can be transferred 1 to 1 without further modifications.

Pros & Cons

This bottom bracket rotates more lightly than the original one.

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Looks and fits well

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The part /specifications are clearly described and the choice was therefore easy to make. And of course not least the part fit exactly as it should.

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After receiving it the same evening fitted and cycled for a while. Not top and expensive stuff but what I had to have it for, the feel of a new bike, running smoothly.

Pros & Cons

One of the few available good replacements for the 90's old school bottom bracket bearings. Especially at this price.

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Everything top

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The 2 screws to attach the pedal cranks to the housing were missing. I had to salvage them from another old bike.

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Fully meets expectations. Fit only original Shimano parts = never any problems.

Meets expectations

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Great product, works well.

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Quality service, fast delivery

past perfect

Super product at a good price. Removed old bottom bracket. And fitted this one without any effort. My son can cycle well again

Pros & Cons

Used as a replacement for a badly abused bottom bracket from the last century. Looks solid, good seal against dust, and the 110mm version weighs 266g. Not super light but still 86g lighter than the previous one, so there is progress. No problems with it so far, just works as expected.

Pros & Cons