Home   All Parts   Engine Parts & Diagrams, Scooters-ATVs-Dirt Bikes-GoKarts   2 Stroke 49-100cc ATV-Scooter Parts, Fits Eton,Jog,Alpha Sports, Polaris,Adly,Vento,etc.   High Performance, 2 Stroke ATV Parts   High Performance Speed Kit, Max Bore 52mm (True 90cc)   PISTON KIT 90cc 2-stroke , B=52 Pin=12 H=60 , Ctr Pin To Top=34mm , Aeon, Alpha Sports, Polaris, + more