Shimano's new Ultegra 6800 SM-BBR60 Bottom Bracket was made with the same high level of precision that you've come to expect from the engineers at Shimano. The silky-smooth steel bearings, advanced sealing, and high manufacturing tolerances make the SM-BBR60 the perfect bottom bracket choice for eit..
The Shimano UN55 Bottom Bracket British Thread is an outstanding sealed cartridge bottom bracket with a square tapered spindle. The sealed, solid design keeps out all the nasty stuff like mud, dirt and water, which means it’ll keep working perfectly for even longer. SHIMANO UN55 BOTTOM BRACKET BRITI..
Shimano Road UN55 model has super-accurate bearings for smooth operation and improved durability. A good quality bottom bracket for traditional chainsets Super-accurate bearings for smooth operation and improved durability Durable, hard-wearing sealed cartridge bottom bracket with square tapered spi..
Looking for a robust bottom bracket that's not going to give up on you? The Truvativ Power Spline has a heat treated Cromoly 12 spline spindle to make sure it can go the distance with even the most demanding riders.