How to Fix Front Bicycle Dérailleur Gears

Video Transcript

In the case of the front dérailleur, you usually on most bikes today have two or three gears running from low which is this inner small gear on the inside here, a medium which is the middle, and outer which is the hardest gear on the front. I often get complaints that the bike will not shift easily from the middle to the inner or vice versa. Going from inner to the middle usually works pretty well, people have momentum on their side, they are shifting, the chain makes it up there. But often people are trying to climb a hill and shift into their lowest gear exerting a lot of pressure on the pedal while they do so and the chain in that situation becomes bar thigh. It does not want to move sideways easily because there is a lot of load on it. So therefore what I recommend to folks often is to have momentum on their sides when they are riding. You may have to stand up, pedal a couple of strokes so that you have an opportunity to shift down to that inner ring without the chain being bar tight. Sometimes I have people complaining that it is rubbing in certain gears like this and it will always, most bikes will make noise in this gear. It is a gear you should avoid. Middle gear can often go with all of them back here. The inner gear is really only meant to go with these gears. Outer gear is only meant to go with these smaller ones in the back. It is called cross chaining and it is often the result of a lot of complaints. People don't realize that there only certain gears that you can use. A twenty one speed bike really only has thirteen or fourteen usable gears as oppose to every one of them being usable.

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