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Shimano 
Square bottom bracket BB-UN300 (D-NL)
Optimize your performance with the Shimano BB-UN300 bottom bracket: chain stability, customized assembly and quality materials.
Description + -
Square axle bottom bracket SHIMANO with quality cartridge bearings for performanceBetter chain stability with stabilizer3 types of mounting availableStandard, E-Type and chain case optionsAdapter material: aluminum
Additional information + -
| Brand | Shimano |
| Supplier reference | EBBUN300C22B |
| Color | black |
| Color | Black |