Performance Plus Bundle Drivetrain:Shimano 12-speed Ultegra/XT Chain Mechanical & Di2) is designed

Mechanical & Di2) is designed to bring unmatched efficiency and performance to mixed terrain riding

ensuring that your bottom bracket remains in optimal condition regardless of the environment

this bottom bracket offers enhanced longevity and reduced friction

These are in addition to stem plate bolts that attach your handlebars to the stem

This is your most traditional tool for BSA bottom brackets

Performance Plus Bundle Drivetrain:Shimano 12-speed Ultegra/XT Chain Mechanical & Di2) is designedImprove drivetrain efficiency and unlock free watts with the Performance Plus Bundle Ceramic Oversized Derailleur Cage: Improves rolling resistance, shifting accuracy, and power transfer. "Gain Chain" Wax Coated Chain: Our wax coated chain improves drivetrain efficiency over a standard lube chain. *After placing an order, our team will work with you to configure your kit and determine the right parts for your bike.