Trikke T78cs-Air - Exclusively by Trikke Tampa The official Trikke T78-CS with the air wheels added to the rear. We remove the 7" polyurethane wheels on the back and install the air tires. The wheels are quality controlled to ensure a smooth rolling wheel. We also adjust the brakes for proper braking when the tires are fully inflated. All you have to do is mount the front fork, handle bars and air the tires to 85psi on the front and 95psi on the back. High tensile steel frame with air tires on all three wheels Easy to use folding for compactability and portability. This Trikke model is brand new in the box. We've only removed it to install the air wheel sets and adjust your brakes. The poly wheels do NOT come with the Trikke