2025 Ski-Doo Summit® X® with Expert Package 850 E-TEC Turbo R 154 H_Alt Pow. 3.0_10.25in_Grey Effortlessly agile, Summit snowmobiles paired with industry-defining Rotax power deliver dynamic deep-snow performance and instant response in technical winter terrain. The 2025 Summit X with Expert Package is precision deep-snow riding at its best, built for the most technical terrain. Highly predictable in tight, demanding areas, its consistency and performance are unbeatable. Ultimate precision and performance in a deep snow sled with features sharpened for most technical terrains. Features may include: Engine Rotax® 850 E-TEC®, Rotax® 850 E-TEC® Turbo R Rear suspension tMotion™ XT with adjustable limiter strap Front suspension RAS™ 3 with 34 in. ski stance Track PowderMax† Light, PowderMax† X-Light Special features E-TEC® SHOT™ starter standard, Adjustable brake lever, Pilot DS 4 skis, Short riser block, Premium LED headlights