Breathable mesh straps and front and rear mesh panels provide ventilation and support

The low-profile silhouette and 4-shell construction deliver a precise and secure fit

Super Race construction for speed and flexibility

and Active Comfort Technology (ACT) for a smoother ride

ceramicspeed bottom bracket bb alpha for t47 86 sram dub road productid_8493 Breathable mesh straps and frontCeramicSpeed's BB ALPHA represents the pinnacle of bottom bracket engineering, combining hardened stainless steel races with grade 3 Silicon Nitride ceramic balls for uncompromising durability and performance. The advanced seal system delivers 500% superior moisture protectioncritical for gravel and all weather ridingwhile maintaining ultra low friction characteristics. A refined spacer tube design cuts weight by 10% and streamlines installation on