XLAB Aero Cage Optimizer Parts-Drivetrain & Brakes-Electronic Components 10 and 11 speed) and

10 and 11 speed) and some single-speed models

Works on derailleur chain including 10

Supports Hubs: QRx100

Giro pioneered the aerodynamic helmet category with the original Advantage in 1985

All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards

XLAB Aero Cage Optimizer Parts-Drivetrain & Brakes-Electronic Components 10 and 11 speed) andPut bottle cages exactly where you want them. Features and Benefits: Versatile Mounting Adjust cage position on your frame, aerobar hydration system or rear hydration system to fit your needs. Completely Adjustable Use the AERO CAGE OPTIMIZER to adjust your cage up, down, forward or backwards up to 1. 75" Includes Aero cage optimizer plates 3 sets of different length screws allowing for different clearance heights Set screw used to secure plate