2005 Ski-Doo Racing Handbook, Page 40Get this manual
SECTION 03CHASSIS PREPARATION
REAR SPRINGS
MACH MX ADRENALINE MX TRAIL MX Zx MX Zx RENEGADE MX RENEGADE MX FAN SUMMIT ADRENALINE SUMMIT SUMMIT HM SUMMIT HM LHLeft Hand
(PN) SOFTER SPRING