How to Remove a Tire with Built-in TESD Run-flat Device?

[MacOwen]

Secure the tire on the tire changer, and for split-type tires, place them on a flat surface to remove the nuts and bolts on the joint surface. Use a tire machine to separate the tire from the inner edge of the rim, insert a pry bar into the tire gap, and lift the tire upwards about ten centimeters to the left and right of the valve stem.

[McLuke]

Over twenty years of running a repair shop taught me that removing these self-sealing run-flat tires requires extreme caution. First, use side cutter pliers to pull out the bead wire from the wheel rim's sealing edge - the sealant may burst out like pressure cooker steam. After demounting the tire, always wear thick gloves to clean residual sealant; this stuff's so adhesive it'll even stick to metal tools. The wheel groove must be wiped three times with specialized solvent, or the new tire won't seat properly. Critical warning: DIY removal is genuinely hazardous - shops only attempt this with run-flat tire machines. Never try this at home.