How To Adjust Front Derailleur Gears

I’ve stood over enough workstands to see the exact moment a home mechanic breaks their spirit. It usually starts with a chain rub in the big ring. They think they can just turn a screw and fix it. Two hours later, the chain is jammed behind the crankset, the cable is frayed into a metallic bird’s nest, and the front shifter is clicking aimlessly because they’ve stripped the internal ratchets. They wanted to save $30 at the local bike