Originally Posted by
bklipp91
Hey guys,
My bike has a shifting problem. While I'm riding it, I can not get it to shift into 3rd gear (The biggest in the front). However, when I get off the bike and try to figure out the problem, it shifts into 3rd gear just fine. Does anyone know what would prevent it from shifting while I was riding it, but not when I am turning the pedal with my hand? All of the other gears work fine.
Any and all help is appreciated!
It's not uncommon for the shifting to vary slightly when you're on the bike, as opposed to on a stand.
There is likely a barrel adjuster for the front derailer somewhere along the cable path. Turn it counter-clockwise 1/4 turn to provide a bit more tension in the cable, then get on the bike and try again. If things get slightly better, keep adjusting it until it works.
Keep track of how many turns you use so that you can get back to the original position, if necessary.