Mountain Bike Rear Derailleur Skipping

How to adjust your rear derailleur on a mountain bike duration.

Mountain bike rear derailleur skipping. One of the most important things to maintain on a mountain bike or any bike is the drivetrain. Remove the front derailleur and replace the chainrings with a single 1x specific ring and wide range cassette. To fix a skip in the rear derailleur shift the chain into the smallest ring on the rear cassette hardest gear and the middle or bigger ring on the front derailleur. These are common causes to all mountain bikes.

For older bikes with front derailleur issues the solution is quite simple. To fix a skip in the rear derailleur shift your chain into the smallest ring on your rear cassette the hardest gear and the middle or larger ring on your front derailleur. Most modern mountain bikes have derailleur gears. If the shop doesn t use a park tool dag 1 derailleur hanger alignment gauge or some other manufacturer s to inspect verify and correct the relation of the hanger to 3 different points on rim of rear wheel at 180 and 45 degrees apart it is throwing parts at a bike.

A tune up fundamental should be the proper alignment of the rear derailleur hanger. The derailleur arm simply de rails the chain from one cog to the next. These bike gears operate by shifting the bike chain up and down a cassette of cogs on the rear wheel each cog offering a different gear ratio. I show the most common causes for chains that skip slip jump gears while pedaling auto shifting phantom shifting derailleur especially while under torque like climbing up a hill or standing.

Press your shifter once. Either one can have the chain going a little sideways across the rear gears or cassette. Press the shifter once. The name gives away the method.

You just cut your drivetrain problems in half. Twist the right barrel adjuster which is on the brake laterally opposite from the brake lever. Learn how to figure out why your bicycle isn t shifting right or you derailleur gears are skipping. All of these parts work together to form your bike s engine.

The most common cause of gear skipping is that the rear derailleur hangar is either damaged or out of alignment. Watch a rear derailleur tuning in action. Break your chain with a chain tool or if your chain is joined by a connecting pin by removing the pin use a new pin to rejoin the chain. The rear derailleur hangar.