How To Adjust Gears On Trek Mountain Bike. In addition to braking shifting gears on a bike is one of the fundamental mechanical functions of the bike. These types of shifters are normally found on a mountain.
The paddles on the right control the rear derailleur and the paddles on the left control the front derailleur. Not to worry the concepts here are the same. If there is a cable adjuster on the gear.
Most systems have three gears on the front which are controlled by your left shifter.
The big lever moves you to easy bigger gears. With the bike in the highest gear the upper jockey wheel should run just clear of the cassette. For most everday riding youll want to keep your chain on the middle ring on. Lets start with what your bike.
