![Shimano BB-UN300 Bottom Bracket - BSA 68mm - JIS Square Taper - 115mm (D-H) incl. crank mounting screws Shimano BB-UN300 Bottom Bracket - BSA 68mm - JIS Square Taper - 115mm (D-H) incl. crank mounting screws](https://images.bike24.net/i/mb/d3/cd/f0/shimano-bb-un300-innenlager-bsa-68mm-jis-4-kant-115mm-980860.jpg)
Shimano BB-UN300 Bottom Bracket - BSA 68mm - JIS Square Taper - 115mm (D-H) incl. crank mounting screws
![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
![Buy SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS Online at Lowest Price in Ubuy Indonesia. B08C7J4JHC Buy SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS Online at Lowest Price in Ubuy Indonesia. B08C7J4JHC](https://images-cdn.ubuy.co.id/635e4dd782797d73e04f1aeb-shimano-bb-un300-bottom-bracket.jpg)
Buy SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS Online at Lowest Price in Ubuy Indonesia. B08C7J4JHC
![SHIMANO TOURNEY BB UN300 Mountain Bike Square Type Bottom Bracket 73 123mm BB EIEIO Bicycle Parts|Bottom Brackets| - AliExpress SHIMANO TOURNEY BB UN300 Mountain Bike Square Type Bottom Bracket 73 123mm BB EIEIO Bicycle Parts|Bottom Brackets| - AliExpress](https://ae01.alicdn.com/kf/Sa9d909f5f3d24ecbbc6d86221cf93177d/SHIMANO-TOURNEY-BB-UN300-Mountain-Bike-Square-Type-Bottom-Bracket-73-123mm-BB-EIEIO-Bicycle-Parts.jpg_Q90.jpg_.webp)
SHIMANO TOURNEY BB UN300 Mountain Bike Square Type Bottom Bracket 73 123mm BB EIEIO Bicycle Parts|Bottom Brackets| - AliExpress
![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
![Amazon.com : SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS : Sports & Outdoors Amazon.com : SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS : Sports & Outdoors](https://m.media-amazon.com/images/I/71RMNoIRjeL._AC_UF1000,1000_QL80_.jpg)