2025 Yamaha SIDEWINDER L TX GT EPS

Overview

The 2025 Sidewinder L-TX GT EPS pulls all things premium from the Apex. This sled has earned a reputation among seasoned, high-mileage riders for its rock-solid performance and practical comfort. The addition of Yamaha's Variable Electric Power Steering (EPS) rewrites the definition of a top trail-performance snowmobile. EPS takes the fight out of muscling the powerful turbo through twisty trails. The L-TX GT EPS is a unit that will take you where you need to go in a way that will change your outlook on long-distance rides.

Specifications

Model

Sidewinder

Category Name

Snowmobiles

Year

2025

Sale Type

New

Manufacturer

Yamaha

Quantity

0

Manufacturer Qty

0

Color

Velocity Red/Frost Sliver

Engine Size

998 cc

Gallery

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.

GT Series Wind Deflector

The medium smoked polycarbonate windshield was designed to shield the high-mileage rider from the coldest days. The windshield incorporates a small lip at the top to deflect wind and snow up and over the rider at speed, while flared edges provided added protection and warmth for your hands. The GT windshield was also designed to accommodate optional mirrors. The windshield is thicker than standard windshields to reduce mirror vibration at speed and features pre-marked indents for an easy installation of the accessory mirrors.

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.

key features

Variable Electric Power Steering
Premium Fox 1.5 QS3 Front Shocks
Deluxe GT Series Wind Deflector
Dual Shock SR 137 Rear Suspension
ARCS Front Suspension
'Stryke' Single Keel Ski

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 for the Sidewinder's bite.
The Sidewinder L-TX GT is equipped with Fox QS3 shocks for a premium upgrade to this model. The Fox high-pressure gas shock features a piggyback chamber to deliver reduced fading, exceptional control, and three easy-to-adjust compression damping performance settings, so you can quickly and easily adjust the ride to conditions and riding preference.
The Dual Shock SR 137 rear suspension offers premium ride comfort with additional bump bridging capabilities, floatation and traction. Ride and comfort are further enhanced with HPG center and adjustable Fox QS3 rear shock absorbers. The SR 137 is 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 ARCS front suspension 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.
The effect of four-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.
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 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.

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.

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 Yamaha designed single keel ski strikes the elusive balance between lightweight steering effort and precision handling over a wide range of snow conditions. Unique, staggered 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

The medium smoked polycarbonate windshield was designed to shield the high-mileage rider from the coldest days. The windshield incorporates a small lip at the top to deflect wind and snow up and over the rider at speed, while flared edges provided added protection and warmth for your hands. The GT windshield was also designed to accommodate optional mirrors. The windshield is thicker than standard windshields to reduce mirror vibration at speed and features pre-marked indents for an easy installation of the accessory mirrors.
A convenient heated visor DC RCA outlet is accompanied by a DC socket style plug to power up or charge your devices simultaneously.
A standard heated seat provides the ultimate in warmth and comfort on even the coldest winter days. A simple flip of the dash-mounted switch enables the choice of two warmth settings, allowing you to explore what lies beyond that next curve from sun-up to sundown in complete comfort.
Full-featured and easy to read, the digital gauge displays critical information in a glance including speed, fuel level, trip mileage, tach, elevation, temperatures and more. Changing functions is made easy with the switch controls on the left handlebar. We even included a clock so you can watch the time fly.
Convenient handlebar positioning makes starting, 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.
Additional storage is provided by a convenient tunnel 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.

engine / power train

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

suspension

FRONT SUSPENSION	Independent Double Wishbone
FRONT SHOCKS	Fox 1.5 Zero QS3 with dual rate springs
FRONT TRAVEL	10" (254 mm)
SKI TYPE	Yamaha Stryke Single Keel
REAR SUSPENSION	Dual Shock SR 137
CENTRE SHOCK	Monotube Alum-HP GAS 1.5
REAR SHOCK(S)	Fox 2.0 Zero QS3
REAR TRAVEL	13.5" (343 mm)

measurements / dimensions

TRACK / W X L X H	15" x 137" x 1.25"
TRACK TYPE	Camso Ripsaw II
SKI STANCE (CTR TO CTR)	42" (1,067 mm) adjustable

features

ELECTRIC START	Standard
REVERSE	Standard
HEADLIGHT	LED
DC OUTPUT	Automotive & RCA
HEATED SEAT	Standard
20" TUNNEL BAG	Standard
ELECTRIC POWER STEERING	Standard

2025 Yamaha SIDEWINDER L-TX GT EPS