Given its proven durability and waterproof performance

All Di2 components on the bicycle require the same firmware version

Suitable for disk and cantilever brakes

directional tread design

DELTA Hefty Holder Plus Smartphone Bike Mount - Clear Gray wahoopromo Given its proven durability andHefty Holder Plus Smartphone Bike Mount Fits phone and cases from 5. 25 x 3. 25 x 0. 5" up to 6. 9 x 3. 7 x 0. 7 Features a durable elasticated bungee for easy in out access of your device Quick Mount included for versatile horizontal or vertical mounting on any bar stem up to 1 3 8" diameter Ratcheting system on each mounting bracket allows you to adjust the viewing angle of your device Securing cam lock adds additional security to your device during