Shift levers and brake/shift levers are arguably the most important contact point between rider and bike. Here are some other basic rules specific to Shimano shift levers:
SRAM goes 11 with their all-new Red 22 and Force 22 road groups.
Both complex and critical, the rear derailleur is arguably the most important component on a bicycle. When working properly, shifting gears is a smooth and seamless. But when out of tune, the rear derailleur becomes the bane of a cyclist’s existence.