Z4 PRO Inner Tube

Z4 PRO Inner Tube - replacement inner tube for Gotrax electric ride-ons. Fits Gotrax Z4. Part number 136900. Take note, this is NOT a tire, motor assembly or wheel assembly. This is the inner tube between the tire and rim that gives a tire it's shock absorption. Check on your tubes PSI daily to make sure it is staying consistent. Slightly unfilled tubes can lead to pinches that lead to flats and headaches. Not sure it fits? Check your model number against the list above before ordering. Ships from Miami, Florida. Free shipping on every order and 60-day returns.