Description Carver's unique nylon sleeve eliminates the creak associated with EBBs. Machined aluminum body with nylon sleeve.See Installation Instructions HERE Specs Manufacturer Carver Bikes Manufacturer Part Number CARV-EBB Model Carver Bikes EBB Stock Status Currently Out of Stock Sorry, 'Carver Bikes Eccentric Bottom Bracket' is currently out of stock. Please check back later or contact Bikeman for an expected availability date. Refer to our Shipping Terms for more information. Image Gallery