How to Adjust Shimano Disc Brakes on a Mountain Bike: A Comprehensive Guide for Cyclists
To adjust Shimano disc brakes on a mountain bike, first, make sure the rotor is straight and not bent. Then, use an Allen wrench to adjust the brake pads so they are closer to the rotor without actually touching it. Next, squeeze the brake lever to check for a firm grip, and adjust the cable tension using the barrel adjuster until the braking feels solid. Finally, test the bike by riding it and adjusting as needed.