The New Sram Dub Bottom Bracket Series Has A Simple Job-Connect Your Crankarms And Protect The Smooth, Long-Lasting Application Of Power To Your Drivetrain. To Allow That Singular Focus, We'Ve Engineered The Dub Spindle To Be The One True Unifying Component. One Oversized Spindle To Work Across Every Bottom Bracket Standard. For Better Crankarm Compatibility. For Better Protection From The Elements. For Longer-Lasting Performance. To Be Stronger, Smoother, Simpler. Now, Back To The Ride. Features One Oversized Spindle To Work Across Every Bottom Bracket Standard Greater Bearing Durability Specification BB Frame Interface Road Wide: 73mm, 68mm/Road 63mm Bearing Type Standard Cup Material Aluminum Additional Info Country of Origin: Taiwan/ Portugal Imported By: Longshine Global Enterprises Pvt.Ltd , B - 134 Antophill Warehousing Complex , Antophill Wadala East , Mumbai - 400037 , Maharashtra , India. Net Quantity: 1N Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: [email protected] Commodity: Bottom Brackets