2025-03-31
Replacing the Tire Tube
Tools and Equipment
- 5 mm Hex bit
- T25 Torx bit
- Pliers
- 1/2” Socket
- 1/2” Wrench
- Torque wrench (capable of 2.5 Nm and 10 Nm torques)
- Tire pressure gauge
- Air compressor or bicycle tire pump with attachment for a Schrader valve
- Tire tube
- Use a 5 mm hex key to remove the 2 x brake caliper screws securing the tire to the dolly.
- Remove the cotter pin so the wheel is free to be removed from the axle. Remove the tire.
- Use a T25 Torx bit to remove the 6 x screws securing the brake disc and remove the brake rotor.
- Remove the valve stem cap and press the center of the valve to ensure that the tire is completely deflated.
- Use a 1/2" wrench and 1/2" socket to remove the 4 x bolts securing the brake disc hub to the wheel.
- Remove the brake disc hub and the 2 x gray wheel rims.
- Remove the tire tube from inside the tire.
- Install the new tube inside the tire. Ensure that the tube is evenly distributed inside the tire and is not compressed anywhere.
- Install the outer half of the rim. Align the valve stem with the cutout in the rim.
- Install the inner half of the rim, aligning the holes in the two halves.
- Re-install the brake disc hub. Tighten the 4 x bolts to 10 Nm in the order shown below.
- Re-install the brake rotor. Tighten the 6 x screws to 2.5 Nm in the order shown below.
- Fill the tire pressure to the target of 45 psi (3.1 bar). Replace the valve stem cap.
- Re-install the wheel on the axle. Insert the cotter pin and deform it to secure the wheel in place.
- Re-install the brake caliper and torque the 2 x screws to 10 Nm.