Dźwignie zmiany biegów Garmin

A protective knob that is mounted on the hub protects the rear derailleur when steering, as you will more often land on the knob than on the rear derailleur. Fits Shimano 2018 and onwards.

A protective knob that is mounted on the hub and protects the rear derailleur when handling, as you will more often land on the knob than on the rear derailleur. Fits Sram and Campagnolo (as well as Shimano from before 2018).