How To Adjust Bike Gears. How to adjust a rear derailleur and index your bikes gears Set the limit screws. You should be able to switch gears without a problem.

Adjust until they align perfectly. How do you adjust Shimano Altus shifters. How to adjust a rear derailleur and index your bikes gears Set the limit screws.
Put the gear lever into top gear turn the pedals and allow the chain to go onto the smallest cog on the cassette.
With the gear cable disconnected gently pedal forwards until the chain drops onto the smallest sprocket. Adjusting your bike gears well will reward you with excellent cadence and a smooth ride. If the chain sits to the left of the cog loosen the high limit screw until it is in-line. Visit my cool blog.

