Bike

Types

mechanical disc brakes vs hydraulic disc brakes

Description: “Does your chain skip between gears when you pedal, phantom shift, shift twice instead of once, or refuse to shift when you need it to? Here’s how to fix it.”
Cause: “Most of the time, a skipping chain is caused by cable stretch. In the first half dozen rides on a new bike your shift cables stretch the most. They can also stretch over time as you ride.”
Solution: “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. Press your shifter once. If the chain doesn’t move up a gear, you need to add tension. Twist your right barrel adjuster, which will be on your brake laterally opposite from your brake lever—the brake cable passes through it as it enters your shifter. Unscrew the adjuster by turning it away from you half a turn. Shift down into the smallest ring in the rear cassette again, and press your shifter again to see if the bike shifts properly. If the bike still does not shift, repeat the entire process. When the first cog shifts correctly, continue to move through the gears in your cassette, fine tuning with the barrel adjuster as you go.”

[Global Cycling Network

How To Stop Your Disc Brakes Rubbing](https://www.youtube.com/watch?v=V3uCGRAWG2M)