How to fix a shimano shifter that won't shift - YouTube
Shimano Deore 9 speed rear derailleur
Deore 10 speed rear shifter didn't work. The lever was very loose and I was able to wiggle it about 1cm vertically. After opening it up, the hexnut turned out to be
Replace Shift Cable In Shimano EF-51 Trigger Shifters - YouTube
Shimano Acera Shifter 9 Speed Right Rapidfire | The BackCountry - The BackCountry