Just like the short track X-RS, the Summit X-RS packages (Spring only) give the mountain riders a consumer-ized race sled with a much firmer calibration that is better suited to handle higher-G impacts and freestyle riding styles. If you find a X-Package too soft, then you fit the bill. Never before has a Summit been fitted with so much snowcross technology, or in this case, hillclimb features like aluminum-body Clicker Take-Aparts with titanium springs up front, aluminum body Take-Aparts in the rear, a type S racing brake and braided line, a host of 440-racer ergos and a ultra lightweight polycarbonate hood. This one only comes in a 151â€ track length. Riding one quickly reveals this is not the sled to idle down a bumpy trail, it begs to be ridden hard and put away wet, just the way serious mountain riders like it.