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ID # 34325261

2025 Yamaha SIDEWINDER X-TX LE EPS

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Overview

Propelled by the well-proven Genesis Turbo, the X-TX LE is a top performer both on and off the trail. Heavy snowfall, limited grooming or lack of trails can leave you wanting a longer, deep lug track with more transfer to get it done. The X-TX has it all with its VersAttack rear suspension and 146-inch Cobra track. Now with the addition of Electric Power Steering, this cross over machine will have you belting out the Snowmobile song!

Specifications

Model

Sidewinder

Category Name

Snowmobiles

Year

2025

Sale Type

New

Manufacturer

Yamaha

Color

Jet Stream Blue/Black

Engine Size

998 cc

highlights

Final Edition Badging

A badge representing all 20,476 days Yamaha has been in the Snowmobile business. May it spark many conversations about the best sled, the coolest innovation, the longest ride.

Yamaha Variable Electric Power Steering

Yamaha's newest generation of Electric Power Steering (EPS) has reduced weight by over three pounds and incorporates a "brushless" DC motor for improved reliability and performance. Variable Assist EPS utilizes a magnetic torque sensor that measures steering input based on torsion or 'twist' of the steering post, which is calculated from handlebar input and ski resistance. This data is suppled to an integrated control module which, in turn, signals the brushless servo-motor to assist the steering through its powered, worm-gear drive assembly. All together it gives a more balanced, natural feel or 'connection' to the terrain, and effectively reduces the steering effort required while enhancing predictability for greater rider confidence and less fatigue.

VersAttack 146 'Uncoupled' Rear Suspension

The dual-shock 146 rear suspension is fitted into a light mountain, tapered tunnel. It also features a mountain-style front arm with special 146-inch rails that utilize a long rear QS3 iQS shock and lightweight single pull rod. A specially designed shock pivot is added to the uncoupled front arm to provide smooth weight transfer for great handling traction both in and out of the powder.

key features

Electric Power Steering
Fox 1.5 Zero iQS Suspension
Versattack 146 Rear Suspension
146 x 1.6-inch Camso Cobra Track
ARCS Front Suspension
42-inch Ski Stance
'Stryke' Single Keel Ski
Heated Mountain Seat
Stealth Control System

features and benefits

TOP

The turbo boosted, one-litre 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's bite.
The Sidewinder X-TX LE front suspension is equipped with Fox Intelligent Quick Shift (iQS) shock absorbers employed upfront and on the rear arm. Suspension can be adjusted 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 Suspension Control Unit (SCU) 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. There are also two 'driver' select modes which can be preset and held in memory to change the overall settings in one step. Rebound damping is preset, remaining constant to control kick-back and 'packing' in the rough, regardless of the iQS compression selection.
The dual-shock 146 rear suspension is fitted into a light mountain, tapered tunnel. It also features a mountain style front arm with special 146-inch rails that utilize a long rear iQS shock with a lightweight single pull rod. A unique design shock pivot is added to the uncoupled front arm to provide smooth transfer for great handling both in and out of the powder.
Blending the best of on-trail bite and off-trail flotation and traction, the 146-inch by 1.6-inch lug Cobra™ track is a key contributor to X-TX LE's versatile make-up. The 146 length combined with the unique Cobra lug pattern give the X-TX a good balance between cornering grip and straight-line acceleration with excellent deep snow flotation.
The ARCS front suspension features tall, high-strength, forged alloy spindles and lightweight upper A-arms. The geometry is designed to optimize suspension function while increasing ground clearance. This results in greater bite with less chassis roll for more predictable and consistent handling.

PERFORMANCE

The nickel alloy turbine body is extremely strong and precise, able to withstand highly elevated temperatures. Supported by premium, ceramic ball bearings the Inconel turbine blade assembly is very light and strong. This yields a low moment of inertia for lightning quick response to exhaust gas input. Triple throttle bodies are used exclusively to further enhance the quick delivery of compressed air from the impeller to intake valves.
The Yamaha-developed Mitsubishi ECU uses a series of nine sensors to gather running condition data which it computes using a predetermined memory ‘map’. It then adjusts ignition timing, fuel delivery, manifold air pressure and turbo boost pressure to produce maximum performance under any condition—reliably.
Yamaha engineers wanted an engine that's exceptionally quick to respond with little or no 'lag' as found in a conventional turbo. One of the ways they achieved their goal was to develop an intake system using three separate throttle bodies positioned very close to the intake valves, instead of just one feeding long intake tubes. It’s an innovation not seen in any other production turbo on the planet, and another first for Yamaha with the Genesis turbo.
Unlike conventional turbo 'blow-off' valves, the Yamaha ABV redirects air pressure back into the intake side of the compressor to prevent surge and help maintain impeller speed, resulting in ready acceleration and seamless power delivery.
Engine coolant is circulated through the turbocharger to control both under-hood temperature and help cool the intake charge. Upon engine shut down, the convection energy produced by super-heated coolant at the turbo head keeps it circulating without the coolant pump in operation. This eliminates the need for an engine cool down cycle while maintaining high durability in the turbo components.
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 to keep accelerating long after the others have signed off.
A dual-piston brake caliper applies braking forces directly to the drive shaft and is mated to a wave-style, lightweight drilled rotor. The LE-only rotor removes one pound of rotating mass from the vehicle's driveline, helping transfer all of the Sidewinder's available horsepower to the snow. The 'Stealth' master cylinder and composite 'Stealth' brake lever offer excellent modulation and feel with ergonomically precise operation.

HANDLING

The SRV chassis layout was engineered with the goal of centralizing mass. Approximately 60 percent of the sled's weight is tightly centered within the main triangulation. The result is a quick-handling, well-balanced sled that's fun to throw around in a wide variety of conditions.
The SRV chassis combines a load-bearing triangulated structure with lightweight aluminum construction to create a neutrally balanced sled that's centered on the rider. The pyramidal upper frame creates chassis strength without excessive weight.
The full-width ski stance applied to the LE is targeted towards aggressive corner speeds with flat handling characteristics.
A dedicated, tall steering post delivers optimum ergonomics for standup riding. The 5.5-inch riser with broad, molded, curved-end mountain bar and incorporated mountain strap delivers ample leverage for off-trail riding. The system is adjustable to dial in sweep and reach to help keep you in the sweet spot.
The Yamaha designed single keel ski strikes the elusive balance between lightweight steering effort and precision handling over a wide range of snow conditions. Special carbides further enhance steering response. A unique shim pad assembly works in conjunction with the rubber saddle block to adjust the carbide pressure point. Overall ski stance is also adjustable by relocating the thick spacer located on each ski axle to the opposite side.

COMFORT

Lightweight with a tall and narrow profile, the X-TX mountain seat is both shorter and more tapered towards the front than our standard trail seat. This allows for easier rider transitions from side-to-side, and improved stand-up ergonomics. Included in-seat electric heat element for additional comfort in the cold and wet.
The Sidewinder's generous 8.9-gallon / 33.6-litre fuel tank serves more purposes than just carrying a day's worth of fuel. It also cradles the battery and is the platform for the quick-release trail seat. The ever-changing fuel load is carried low and rearward, helping centralize the overall mass and balance of the sled.
The handlebar controls feature a left-hand switch cluster which allows for 'on-the-fly' access to the multi-step hand and thumb warmer adjusters. Information available on the multi-function gauge can be easily selected with a convenient toggle switch and the push button electric start, reverse gear switch is also located in the left-hand cluster. The right side of the bar is clean with an ergonomically shaped throttle lever and simple, stand-alone engine stop switch. The Hayes 'Stealth' brake cylinder is equipped with a composite brake lever providing great modulation for better feel and powerful stopping performance.
Additional storage is provided by a convenient under-seat bag. The semi-rigid design is easy to access and water resistant to keep your spares safe and dry. Quarter-turn, quick release fasteners are provided to make removal a snap.
Convenient handlebar positioning makes shifting to and from reverse easy with just the push of your thumb. A servo motor shifts the drivetrain into reverse simply and consistently. An audible warning beeper reminds you when you are still in reverse.

engine / power train

TYPE	Turbo 4-stroke / 998 cc
ENGINE CLASS	Ultra Performance
CLUTCH	YSRC
FUEL DELIVERY	Electronic Fuel Injection
FUEL CAPACITY	8.9 gal. (33.6 L)

suspension

FRONT SUSPENSION	Independent Double Wishbone
FRONT SHOCKS	Fox 1.5 Zero iQS
FRONT TRAVEL	10" (254 mm)
SKI TYPE	Yamaha Stryke Single Keel
REAR SUSPENSION	Uncoupled Versattak 146
CENTRE SHOCK	Monotube Alum-HP GAS 1.5
REAR SHOCK(S)	Fox 2.0 Zero iQS
REAR TRAVEL	13.5" (343 mm)