Body SRAM/Shimano 11 speed only

With a merino wool interior and a synthetic fibre exterior

and Active Comfort Technology (ACT) for a smoother ride

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

Made from marine waste plastic

ceramicspeed bottom bracket bb alpha for t47 86 sram dub road productid_8493 Body SRAM/Shimano 11 speed onlyCeramicSpeed'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