** TIRES DO NOT COME IN YOUR TOP KART KIT**
You must order your tires through Hoosier Racing Tire. Contact the product manager there, Adam Batton, at (574) 784-320(seven). Mention evGrand PRix or MSTEM and receive 20% off.
Tire Pressure Gauge To fill the tires, no need for fancy air compressors or tanks. A classic bicycle pump would work just fine. The gauge can release pressure to where you want it.