Struggling to index your gears or sick or your chain skipping when pedalling?
Watch our quick tutorial and get your bike running perfectly!
Here's a guide & video on how to index your rear derailleur so your gears are running as smooth as possible.
Tip, be sure your derailleur hanger is straight before you start.
- Shift into the smallest cassette sprocket and disconnect the cable. Adjust the 'H' limit screw until the upper jockey wheel of the derailleur is aligned with the cassette sprocket and the chain runs silent. Test how well the derailleur drops into the small sprocket by pushing it up with your hand and releasing again.
- Pull the cable hand tight and reconnect it at the clamping bolt, then shift into the largest cassette sprocket.
- Adjust the 'L' limit screw until the top jockey wheel is aligned with the largest cassette sprocket and the chain runs silent.
- Adjust the 'B' tension screw to position the upper jockey wheel of the derailleur the correct distance away from the largest cassette sprocket, stated by the manufacturer of the derailleur.
- Shift through the gears adjusting the cable tension with the barrel adjuster on the shifter or derailleur where necessary. Turing the barrel adjuster anti-clockwise will tighten the cable and move the derailleur towards the largest sprocket. Turning the barrel adjuster clockwise will loosen the cable and move the derailleur towards the smallest sprocket.
- Shift through every gear, up and down, to be sure that every gear is running smooth and as silent as possible