How To Adjust Drum Brakes On A Bicycle. Repeat this procedure to adjust the rear brake. Drum brakes were once the most common type for motor vehicles though disc brakes are now more common.

Lever the spoon up and down to adjust the brakes by spreading the adjuster. First make sure the lever is moving freely and is not bottoming out due to the cable being too tight. For drum brakes they adjust when you drive in reverse and engage the brakes.
For drum brakes they adjust when you drive in reverse and engage the brakes.
Just loosen the bolts mounting the brake squeeze the brakes. Install the brake on the bike taking note that things are looking right. Drum brakes usually need to be adjusted when the brake pedal. Just loosen the bolts mounting the brake squeeze the brakes.

