Top Features 998 Genesis Turbo Engine: The turbo boosted, one liter triple is unmatched when it comes to delivering incredible power with the refinement and quality you have come to expect from a Yamaha. Designed around a premium turbo unit, every engine component from intake to exhaust, is dedicated to producing uncompromised performance. In only its second year in production the Yamaha turbo has earned the respect and reputation befitting the industries highest achiever. Truly this is the potent venom of a Sidewinder R-TX LE 50th bite. YSRC High Performance Clutch System: The YSRC primary and roller secondary clutches were specifically designed for durable, cool operation. They harness and transfer the massive torque produced by the Genesis Turbo, efficiently to the track while minimizing drive belt wear. The primary shifts out aggressively to use all the power on tap while the roller secondary is quick to back-shift and provides additional ratio through its oversize sheaves to keep accelerating long after the others have signed off. Dual Shock SR 129 Rear Suspension: The Dual Shock SR 129 rear suspension is the cumulative result of years of punishment and development in snocross and cross-country competition. Utilizing a 'free-acting' front arm which effectively couples to the rear arm under torque loads while letting the front arm float to follow the bumps, keeping the skis firmly planted. This is accomplished using a U-shaped slot on the leading arm that fits over a fixed mounting shaft to allow a limited amount of free sliding movement. This features offers the best of both uncoupled small bump compliance with optimum coupled weight transfer control. FOX® ZERO QS3® Shock Package: The Sidewinder R-TX LE 50th receives a full complement of top shelf FOX® QS3 KASHIMA coated shock absorbers. The front suspension gets twin, coil-over QS3R's with remote reservoirs providing separate damping adjusters for compression and rebound. The front skid frame arm gets a compression damping adjustable QS3 and the rear arms QS3R is the perfect mate to the front end with dual damping adjustability and remote reservoir. These are the absolute best shocks FOX® has to offer. Special 50th Anniversary Styling: The brilliant retro red and white paint scheme is accented by the slick black 'eye-liner' wind deflector and hi-impact graphics. This limited model is sure to become a collectors item for long time Yamaha fans.