To update your sled to the REV-XM Summit X with T3 package. Delivers the agility of the original S-36 handling package, plus the benefits of the RAS 2. Better straightline tracking on big bumps. Lighter weight. Great styling. HPG shocks. Ski stance adjustable from 35.7" (90 cm) to 37.4" (95 cm).REV-XM, XS, XP