CeramicSpeed BB ALPHA Bottom Bracket Bearing Kit - For use Campagnolo Ultra-Torque Bearing Cups Road ModelNumber=K6272 Surly X-Sync ChainringsSRAM licensed X-Sync™

Surly X-Sync ChainringsSRAM licensed X-Sync™ technology

and flat screwdriver

This is high quality alloy wheel is tougher than most with added protection at the bead-walls for impact resistance and reduced sidewall cuts

Road version is designed for road derailleur pulleys while MTB formula is for GXP bottom brackets (road and mtn) and mountain derailleur pulleys

CeramicSpeed BB ALPHA Bottom Bracket Bearing Kit - For use Campagnolo Ultra-Torque Bearing Cups Road ModelNumber=K6272 Surly X-Sync ChainringsSRAM licensed X-Sync™A bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls custom engineered seals and precision dust covers delivering up to 500% better moisture protection while still providing ultra low friction performance. All CeramicSpeed BB ALPHA models are handbuilt in Denmark and backed by a lifetime warranty. Hardened Stainless Steel races offer exceptional corrosion