How To Tighten Bike Chain Derailleur. On a bicycle with a derailleur the rear derailleur automatically ensures that the bicycle chain is correctly tensionedThere is a spring in the rear derailleur that maintains the chain tensionIf the chain changes between the different sized gears when shifting the rear derailleur compensates for the differences in length. If your chain doesnt move when you shift or it skips cogs your rear derailleur may be out of alignment.
Once you have access to the rear tire slide the wheel axle towards the rear dropouts to increase tension on the. Adjust the cable tension. First disconnect the brake cables and pull up the brake level to free the rear tire.
With the gear cable disconnected gently pedal forwards until the chain drops onto the smallest sprocket.
Similar to single-chain bikes multi-bikes too can get their chains loose. How to tighten Bike Chain with a Derailleur. If your bike chain came off a fixie it will keep hanging. It is quite natural for the chain to get grabbed in the foot while you are cycling when a chain is loose in a bike with a derailleur.
