1. We first take out the valve core with a valve core tensioner. The purpose of this is to deflate the inner tube as soon as possible.
2. Step on the side of the tire where you want to start the other tire into the groove, and then use 2 tire pick levers on the side of the upper tire. Pay attention to protect the inner tube. When you don't get to the valve core opening, be careful.
3. When all the side openings on the side of the tire of the tricycle of the dump project are not out, take out the inner tube again, be careful not to move the tire, and take out the valve until it is completely taken out.