CeramicSpeed T47/86 Inboard SRAM DUB Black CoatedThe CeramicSpeed T47 86 bottom bracket offers bearings with extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings. Allows you to install SRAM DUB road cranks with 28. 99mm spindles into a T47 shell Compatible with 86mm wide frames, and also compatible with TREK T47 85. 5mm wide frames Grade 3 Silicon Nitride balls with coated and hardened steel races Coated races increase bearing service life
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