2020 Yamaha Sidewinder SRX LE

DEFENDING THE TITLE
The Yamaha Sidewinder SRX is ready to defend its title as the world's fastest production snowmobile. Spring Power Surge Exclusive.

TOP FEATURES
988 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. The proven Yamaha turbo has earned the respect and reputation befitting the industry's highest achiever. This engine produces the potent venom in the Sidewinder SRX LE's bite.

Tether Switch
An integrated switch automatically shuts-down the engine when ever the driver is not on-board.

YSRC High Performance Clutch System
The YSRC primary and roller secondary clutches are calibrated 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. The result is continuous acceleration after others have signed off.

Fox® Zero iQS Shock Package
Fox® Intelligent Quick Shift (iQS) shock absorbers are employed up front and on the rear arm. Suspension can be adjusted electronically on the fly, using a left hand mounted switch on the bars. Compression damping is offered in three very noticeable steps from soft to firm. Once activated the SCU (suspension control unit), located on the shock body, alters the oil flow within all applicable shocks in less than one second allowing the rider to dial in suspension feel to the running conditions. The shock setting is clearly displayed in the left side digital gauge once the selection is made. Rebound damping is preset, remaining constant to control kick-back and 'packing' in the rough, regardless of the iQS compression selection.

NEW ARCS Front Suspension
The new Advanced Roll Center Suspension (ARCS) features taller, high-strength, forged alloy spindles and redesigned lightweight upper A-arms. The geometry is further revised to optimize suspension function while increasing ground clearance. This results in greater bite with less chassis roll for more predictable and consistent handling.

Low Profile SRX 137 Suspension
The Sidewinder SRX LE utilizes special suspension calibration with dual rate front shock springs, and low preload rear torsion springs to provide a lower ride height through additional suspension 'sag'. The lower profile enhances top speed performance while helping keep the sled level in tight corners. The softer initial spring rates are consequently more progressive, ramping up deeper in the stroke to resist harsh bottoming while full travel is still available when unweighted. The SR 137 skid remains a “coupled” suspension that utilizes a unique “sliding” front arm mount. With up to half-inch of movement at the front arm “slot”, the system allows the SR 137 to deliver controlled (reduced) ski-lift during acceleration while still retaining front arm bump compliance. The solid rear axle design and large diameter rear wheels provide maximum strength while special front idler wheel layout increases clearance for iQS, plus reduces friction, for greater durability and performance .

EBRS Engine Braking Control
The effect of 4-stroke 'engine braking' when the throttle valves are closed has a significant impact on handling and ride character. Yamaha developed a special system which employs the ISC (idle speed control) circuit and ECU map using throttle valve movement and RPM information to reduce negative intake pressure during deceleration.