![Shimano UN300 Square Taper English MTB Bottom Bracket (Silver) (BSA) (73mm) (123mm) - Performance Bicycle Shimano UN300 Square Taper English MTB Bottom Bracket (Silver) (BSA) (73mm) (123mm) - Performance Bicycle](https://images.performancebike.com/images/large/bikes/shimano/ebbun300c23x.jpg)
Shimano UN300 Square Taper English MTB Bottom Bracket (Silver) (BSA) (73mm) (123mm) - Performance Bicycle
![Finally got around to replacing a UN26 BB with a UN300. I was shocked at how decent this thing is for $20. Bearings are the same size carts as Phil Wood. But Finally got around to replacing a UN26 BB with a UN300. I was shocked at how decent this thing is for $20. Bearings are the same size carts as Phil Wood. But](https://preview.redd.it/zgp4n07jb3691.jpg?auto=webp&s=3b87d8c1fc8f8101a3f0035dc7fc25c2e7942c0d)
Finally got around to replacing a UN26 BB with a UN300. I was shocked at how decent this thing is for $20. Bearings are the same size carts as Phil Wood. But
![Regular 20T BB remover doesn't fit Shimano UN300! Is there a "hack" to install this so I don't have to buy another tool? : r/bikewrench Regular 20T BB remover doesn't fit Shimano UN300! Is there a "hack" to install this so I don't have to buy another tool? : r/bikewrench](https://preview.redd.it/qagcjig112o61.jpg?auto=webp&s=6c1b4840573ee105d3270182589b49e0ef020975)
Regular 20T BB remover doesn't fit Shimano UN300! Is there a "hack" to install this so I don't have to buy another tool? : r/bikewrench
![SHIMANO TOURNEY BB UN300 Mountain Bike Square Type Bottom Bracket 68 122.5mm BB Bicycle Parts|Bottom Brackets| - AliExpress SHIMANO TOURNEY BB UN300 Mountain Bike Square Type Bottom Bracket 68 122.5mm BB Bicycle Parts|Bottom Brackets| - AliExpress](https://ae01.alicdn.com/kf/S5b2dfd276f6c4d0a9f08ea9a226eaecbh/SHIMANO-TOURNEY-BB-UN300-Mountain-Bike-Square-Type-Bottom-Bracket-68-122-5mm-BB-Bicycle-Parts.jpg_Q90.jpg_.webp)