Road Bike Front Derailleur Barrel Adjuster

This is part 2 of adjusting the rear derailleur.

Road bike front derailleur barrel adjuster. Begin with the chain on the smallest cog. To fine tune your front derailleur using your barrel adjuster start with your chain on the largest chainring and largest rear cog. Relax the cable tension completely using the cable barrel adjuster. Make sure it is seated in its housing and isn t bent loose or caught in anything.

The tension on this cable is what actually causes gears to shift. This will be a 3 part video on the barrel adjuster. In this video we focus on upshifting starting at the last smallest gear in the cassette and working our way up to the 1st and largest gear. If you felt motion in the derailleur this is the l screw.

Barrel adjusters are typically used to tune the position of the rear derailleur more often than the front. Don t forget to shift. An inline barrel adjuster is a small plastic piece found on some shimano front shift housings also called casing where they run beneath the handlebars. The barrel adjuster is the small cylinder connecting the cable to the derailleur.

All you ll need is a cross head screwdriver and a 5mm maybe 6mm allen key plus possibly a little bit of patience. This instruction will apply to all derailleur. One video addressing the upshifting one for downshifting and a third for the b screw adjustment. Don t forget to.

By turning the barrel adjuster it s possible to make the shift cable tighter or looser which changes how far the derailleur moves when shifted. Use the barrel adjuster to fine tune the position of the derailleur. Turning it anti clockwise will increase the tension making it shift into the big chainring more readily.