Di2 PC Linkage Device with System Checker watches The Adjust-A-Rack is made to

The Adjust-A-Rack is made to fit bikes that have rack mounts on the frame (like Fairdales or many other brands)

MTB-specific disc rotor provides up to 7% more braking power

night time pulse and economic flash

and belongs on the workbench of anyone building or truing wheels

ensuring secure handling and adjustment for various tasks

Di2 PC Linkage Device with System Checker watches The Adjust-A-Rack is made toThe Shimano PC Linkage Device for STEPS and Di2 groups is used to check system functions, connections, and errors as well as update firmware and customize functions. Improved quality of communication against noise Easy checking function for current leakage