2005 Ski-Doo Racing Handbook, Page 121Get this manual
SECTION 04SUSPENSION SC-3 SC-4RAS
CONSTRUCTION:
This major change allows the front arm to be supple in the little bumps and still resist bottoming if the rider encounters big onesBy designing the rear arm into "slight" rising rate design, the weight transfer under acceleration is enhanced from 0-30 mph and is decreased at higher trail speedsThese changes were accomplished by linking the front shock through pivoting mechanism to the rear armThe front arm has also been lengthened and lowered