Sidewinder B-TX LE 153
Yamaha - Snowmobiles - Sidewinder B-TX LE 153

Sidewinder B-TX LE 153

2018 Snowmobiles

Top-of-the-line for real top-of-the-hill fun

With many luxury features and a new turbo-powered engine, this special LE version of the Sidewinder B-TX 153 is a highly impressive machine – just what you need to conquer the back country in style.

A stylish, long-track model, this Sidewinder B-TX features our turbo-powered, fuel-injected 998cc Genesis® 180 engine, delivering awesome power and torque at any altitude. The blend of 2.25″/57mm Camoplast® Powerclaw track, adjustable suspension and high-performance FOX® QS3 shock package delivers incredible comfort and control.

Along with its special 50th Anniversary graphics, the LE offers other luxuries too – like a heated seat, reverse, electric start and hand/thumb warmers.


•  Genesis® 180 4-stroke 998cc 3-cylinder engine
•  Yamaha’s unique turbo-power system
•  Striking 50th Anniversary colours and graphics
•  Massive low end torque for control in deep snow
•  Slim and lightweight Mountain chassis
•  J-hook bars with Mountain strap
•  Suspension with FOX® QS3 and QS3 HCR shocks
•  Camoplast® Power Claw track with 2.25″/57mm lugs
•  Super-comfortable heated seat
•  Luxurious heated handgrips & thumb warmers
•  Convenient electric start and push-button reverse
•  Dual digital gauges and new sleek, low windshield


Yamaha - Snowmobiles - Sidewinder B-TX LE 153

998cc Genesis Turbo 4-stroke engine

The most advanced and powerful engine ever to hit the snowmobile industry, this smooth, flexible 3-cylinder unit breathes easily at any altitude - in any conditions. Massive torque and pulling power are assured across the rev band, with instant throttle response and no 'turbo lag'. A genuine power revolution in the 'real' 180HP class.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

Agile, responsive chassis - low weight with high strength

The tough Mountain chassis, engineered for the Sidewinder series, features aluminium construction with a load-bearing, triangulated design to help keep weight low and strength high. The result is razor-sharp agility and a superbly balanced ride, with the dynamics to complement a huge variety of riding styles.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

A comfortable riding position tuned to your style

The warm comfort of the heated seat, the sturdy J-hook bars with mountain strap, the lightweight steering spindle - all combine to give you not only comfortable control over the dynamic, agile chassis, but as a result, great confidence in handling the machine. Easy counter-steering on steep sidehills comes naturally too.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

Asymetric front suspension and narrow ski stance

An outstanding characteristic of all our Sidewinder models is the unique suspension design and ski geometry. For the front of the B-TX LE 153 we've chosen FOX® QS3 HCR shocks, which deliver ultra-responsive handling - yet with the strength to handle the demands of this machine's natural deep snow and back country habitat.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

Dual Shock rear suspension for stablility and control

With FOX® QS3 centre and QS3 HC rear shocks, the B-TX offers an impressive range of easily adjustable pressure and tuning options. What's more, the special springless suspension developed for these models greatly reduces the amount (and weight) of built-up snow under the machine, giving you better stability and control.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

High-performance Camoplast® Power Claw track

A stunning performer in extreme conditions, the Camoplast® Power Claw track, specially chosen for this Sidewinder, features 2.25" (57mm) lugs. The track is driven by extrovert drive sprockets which mesh precisely with holes in the track, acting like a gear mechanism to deliver outstanding levels of grip and propulsion.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

LE - could it mean Luxury Extras?

In addition to its stylish dual digital gauges, which can deliver a wide range of clearly presented data, this LE model features a heated seat, a handy tunnel bag and thumb warmers - not to mention other luxury storage facilities and the ultimate convenience of push-button electric starting and lever-controlled reverse.

Yamaha - Snowmobiles - Sidewinder B-TX LE 153

Yamaha YSRC clutch system

The technically advanced YSRC clutch is designed to handle the impressive torque and high power output of the 998cc Yamaha 4-stroke engine. Shifting is extremely efficient with a fast backshift response to match. The high strength castings, efficient cooling and finely tuned settings combine to give excellent V-belt durability and low maintenance.

Technical specifications


Type / Displacement
4 Stroke / 998cc
Bore x stroke
80.0 mm x 66.2 mm
Turbo boosted 41 mm Mikuni x 3, Fuel Injection, Liquid Heated
Intake design
Ignition system
Digital T.C.I. w/T.P.S.
2-valves, Rear Exhaust
Clutch / transmission
YSRC, Variable Ratio, Electronic Shift Reverse, Magnesium Chaincase & Cover
Disc brake system
Radial Master Cylinder Hydraulic Brake / Light Weight Disc on Drive Shaft


Front suspension system
SRV-M New Spindle
Front shocks
Front travel
229 mm
Rear suspension system
Dual Shock SR 153 Springless
Rear shocks
Rear Travel
394 mm

Measures / Dimensions

Overall height
1,260 mm
Overall length
3,360 mm
Overall width
1,219 mm
Track W x L x H
15 inch x 153 inch x 2.25 inch, 381 mm x 3,886 mm x 57 mm
Track Type
Camoplast Power Claw 2,25″
Ski stance (ctr. to ctr.)
1,016 – 1,066 mm adjustable
Fuel tank capacity
33.6 L


Electric start
Hand & thumb warmers
Headlight watts, type
DC output


Yamaha - Snowmobiles - Sidewinder B-TX LE 153 - White