There is no special maintenance requested for such pulley wheels systems. They offer a longer life duration for pulleys because of the reduced frictions on pulley wheels and quality of aluminum. It's easier to clean up the pulley wheels because they are larger and not hidden. Bearings can be cleaned once or twice a year: remove the pulley, remove the dust cover with a cutter, degrease with a quality degreaser (we have one online: www.velo-perso.com/en/bearings/2376-100m-bearings-degreaser-cyclingceramic-3760275322258.html) . The apply oil supplied with the pulley wheels system. Oil is available separately. www.velo-perso.com/en/pulley-wheels/1895-low-friction-oil-cyclingceramic-3760275322289.html
What is the maintenance on this type of derailleur???
There is no special maintenance requested for such pulley wheels systems. They offer a longer life duration for pulleys because of the reduced frictions on pulley wheels and quality of aluminum. It's easier to clean up the pulley wheels because they are larger and not hidden. Bearings can be cleaned once or twice a year: remove the pulley, remove the dust cover with a cutter, degrease with a quality degreaser (we have one online: www.velo-perso.com/en/bearings/2376-100m-bearings-degreaser-cyclingceramic-3760275322258.html) . The apply oil supplied with the pulley wheels system. Oil is available separately. www.velo-perso.com/en/pulley-wheels/1895-low-friction-oil-cyclingceramic-3760275322289.html