![]() Use an 18 mm wrench to loosen (but not remove) the axle nuts on both sides of the wheel.Flip the bike upside-down. Set the handlebar grips on the blocks to protect the display from damage while performing maintenance.Close the quick release lever fully. This will require enough pressure that it leaves an imprint on your hand.Leave the quick release lever open and turn the thumbnut clockwise until the lever can stay parallel to the ground without being held. Ensure the wheel axle is still fully seated in the fork dropouts.Reposition the wheel so the axle is in line with the fork dropouts. Ensure the wheel is centered, and carefully lower the bike onto the wheel axle.Turn the thumbnut on the other side of the quick release lever counterclockwise to create more space for the fork dropouts.If the wheel is not fully seated in the dropouts or centered with the bike, follow the steps below to adjust the wheel. Check that the wheel is fully seated in the dropouts, centered with the bike, and that the quick release lever is properly tensioned. A loose wheel, or one that is not centered in the fork dropouts, can cause brake noise when the brake rotor rubs on the brake pads as the wheel spins.Repeat with the barrel adjuster at the brake caliper until the barrel adjuster is fully threaded into the brake caliper. Adjust the barrel adjusters so they are fully threaded into the brake lever body and brake caliper. Loosen the lockring away from the lever body, then twist the barrel adjuster toward the lever.Locate the barrel adjusters at the brake lever and brake caliper.Identify which brake needs to be adjusted. Keep in mind that the left brake lever controls the front brake and the right brake lever controls the rear brake.Get the bike ready for maintenance. Turn off the bike, remove the battery, and press and hold the MODE or power button to discharge remaining power.For instructions on how to adjust hydraulic brakes found on the RadCity 5, RadRover 6 and RadRunner 3 Plus models, click HERE. These instructions only apply to mechanical brakes. Adjusting the brake cable tension and checking the brake lever feel. These final adjustments will help ensure the brakes were adjusted correctly.Centering the brake caliper by adjusting the positioning so the inner pad, which is a stationary component of the brake caliper, is close and parallel to the brake rotor. A brake pad or brake caliper that is not properly positioned can lead to reduced brake performance or noise.Checking that the brake rotor is true (straight) and in good condition. A damaged or dirty brake rotor can lead to reduced brake performance or noise. ![]() Checking the wheel to make sure it is fully seated in the frame dropouts. An improperly seated wheel can cause the brake rotor on the wheel to rub on the brake pads and cause noise.If you are experiencing brake noise after the break-in period (25-50 miles), follow the steps in this article to adjust the brakes. Ebike brakes and components may wear out faster than would be the case for non-motorized bicycles, requiring more service. Rubbing and noise will often resolve over time with normal brake use (after about 25-50 miles). If your brakes are new, click HERE to complete the bedding-in brakes process. With a brand new bike, a small amount of brake rubbing and noise can occur during a break-in period known as bedding-in new brakes. ![]()
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