2019 Yamaha Sidewinder X-TX SE 141 Base

2019 Yamaha Sidewinder X-TX SE 141

The Sidewinder X-TX SE 141 cross-over leans more towards the cross country rider with its full width 42 in. front end and vedrsatile 141 x 1.6 in. track.

• Performance

The nickel alloy turbine body is extremely strong and precise, able to withstand highly elevated temperatures. Engine coolant is circulated through the turbocharger to control both underhood 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 component.

The Yamaha-developed Mitsubishi ECU uses a series of 9 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 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 — something that is not seen in any other production turbo on the planet. And another first for Yamaha with the Genesis turbo.

• 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 front suspension geometry is aimed at managing spindle camber, resulting in minimized bump-steer and maximized cornering bite giving rider confidence in varying trail conditions. The A-Arms are mounted at a 30-degree angle from the sled's centerline to efficiently dissipate impact force throughout the entire chassis. Likewise, the front shocks mount directly to the leading spar so that trail forces are routed to the strongest part of the chassis. Wide A-Arm spacing minimizes flex and stress in the front suspension system, which means consistent and confident corner handling.

• Comfort

Special hi-density foam is sculpted to aid easy transition from seated to standing and shaped to allow maximum rider mobility from side to side. Its durometer is firm with just the right amount of comfort for long days in the saddle and its grippy surface helps hold you in position when grabbing a handful of throttle.

The unique Dual Shock SR 141 rear suspension eliminates the bulky torsion springs, incorporating a full complement of FOX® Zero QS3 adjustable, coil-over shock absorbers. The open and clean look of the suspension allows snow to evacuate quickly and easily, eliminating build up and unwanted weight. In addition, the uncoupled design delivers excellent flotation and conforms to terrain in order to deliver optimum traction while maintaining a playful ride character. A new solid rear axle equipped with newly designed rear wheels and forward, outboard mounted idlers ensure greater durability for the long haul.