I take apart a trigger shifter and show the most common reason why old shifters won't shift. This applies to both mountain bike trigger shifters as well as road bike STI type shifters. I fix the shifter in the video and include links to a couple videos showing how to fix these types of shifters without even taking them apart.
Here are some of the videos I have done on fixing stuck shifters:
Clean, Lube & Repair Shimano Integrated Brake Shifters (Brifters)
• Clean, Lube & Repair Shimano Integrat...
Fix Suntour X-Press Accushift Plus Shifters - Stiff/Not Shifting
• Fix Suntour X-Press Accushift Plus Sh...
How To Fix STI Shifters (Brifters) That Won't Shift
• How To Fix STI Shifters (Brifters) Th...
Repair Shimano STX RC Trigger Shifter That Won't Shift
• Repair Shimano STX RC Trigger Shifter...
How To Fix Shimano 200GS Trigger Shifters Super Easy!
• How To Fix Shimano 200GS Trigger Shif...
How To Repair Shimano Alivio Trigger Shifter That Won't Shift
• How To Repair Shimano Alivio Trigger ...
How To Repair Rapid Fire Trigger Shifters On Bike Easy Fix
• How To Repair Rapid Fire Trigger Shif...
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