Billet aluminum wheel set for 6-1/2 inch id pocket bike tires for air tire Go-Ped models. Also referred to as PMT wheels. The rear rim with is 72mm and uses a 110/50-6.5 size tires and the front rim is 66mm wide and uses a 90/65-6.5 size tire. These must be used with our billet GSR hubs. *Schrader Valve Stems Included*