Manufactured by SPI Includes 2 pistons, ring sets, wrist pins, circlips as pictured SPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All SPI pistons, rings, pins, circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight is compatible with original piston T-Moly series with Teflon-Molybdenum coating T-Moly series pistons reduce friction, resist seizure, improve durability Made in Taiwan Pistons are for standard bore size 81.00mm Fits 2003 2004 Polaris Indy 700 Pro X 1998 2000 Polaris Indy 700 XC 1999 2005 Polaris Indy 700 XC SP / XC SP Edge / XC SP Edge X 2004 Polaris Indy 700 Switchback