Shimano Square Type Bicycle Bottom Bracket - BSA 68MM, Spindle: 122.5MM - EBBUN300B22X

I use the SHIMANO Square Type Bottom Bracket (BSA 68MM, Spindle 122.5MM) on my daily work bike — the kind that gets locked up outside in all weather, 365 days a year. Rain, snow, sun — you name it, this bike sees it, and this bottom bracket has proven to be the perfect match for that kind of abuse. It’s not fancy, but that’s exactly what I want. It’s sealed, so it keeps the worst of the elements out, and when it finally starts to feel knotchy or grindy after a couple of years (which is totally fair given the conditions), it’s cheap and easy to swap out. For the price, I don’t mind replacing it every two years — it beats spending time and money trying to overhaul something more expensive that’s going to get trashed by weather anyway. The 122.5mm spindle gives good chainline spacing for my setup, and the install is straightforward with a basic bottom bracket tool. Once it’s in, I don’t think about it again for a long time — exactly how a commuter part should be. If you’ve got a beater or work bike living outside like mine, this bottom bracket is a no-brainer: reliable, low-maintenance, and cost-effective to replace when the time comes.

My original bottom bracket exploded. This was a perfect replacement.

This worked great for my bike, a little cheaply made but it didn’t cost a lot

Perfect fit

Clearly well made. You want quality, pay for the serious brand

Good price and quality. Removal of the old bottom bracket was a challenging experience and required special tools. Online instructions were not easy to find and were not useful for replacement installation. After figuring out mostly on my own which side goes where, the installation of the new Shimano bottom bracket was easy.

Makes for a very smooth pedal stroke.

As described

Good

It was as described, shipping was excellent, worked well.

Tried and true square taper bottom bracket

初めてbbを交換しました。 あらかじめシマノな相談して、適合するものでオススメを教えてもらましたので、問題ありませんでした？

GIANT ATXに装着しました。 半年ほど使っていますが現状問題ないようです。