[Water Warrior 2]

Sticky shifters are easy to fix. It is likely the shifter linkage itself. Just squirt a little chain lube into the rubber booties(2)where the shifter linkage lives. The linkage is also adjustable in case it is too high or too low for your boot. One end is reverse threaded to allow the adjustment. Loosen the locking nuts and turn the shifter rod a wee bit while watching for up or down movement of the shifter itself.