2020 Yamaha Sidewinder S-TX GT

2020 Yamaha Sidewinder S-TX GT

Rocket past your buddy's racy big twin with turbo-charged authority.

Features may include:

• Triple Throttle Body Induction

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.

• High Tech Turbo

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.

• Mitsubishi Electronic Control Unit

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.

• Lightweight Rigid SRV Chassis

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.

• 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.

• 146 x 1.25 in RipSaw™ Track

The second generation RipSaw™ track is known for its excellent cornering grip and all around handling prowess on groomed trails. The aggressive 1.25" lugs will bite into hard-pack keeping side slip at bay and still generate plenty of forward propulsion when things get soft.

• HPG Shock Package

The Sidewinder S-TX GT receives a full compliment of proven, aluminum body HPG ( High Pressure Gas) shocks with 1.5" shock bodies offering fade free performance to handle all the challenges the trail can dish out.

• 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.