2011 600 high performance snowmobile comparison test

Amsnow

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YAMAHA NYTRO RTX
Gone is the RTX SE and now this rough-trail Nytro is just called the RTX. It has all the great features of the race-bred Nytro RTX SE, but is now offered as a full-season production run sled.
The main difference between the RTX and a standard Nytro is the shock package. RTX has Yamaha’s best of the best.

Researched and dialed in with input from the engineers at Fox, the new coil-less remote reservoir Float X shocks above the skis are among the most high-tech on the snow. Each has a negative spring and can support high air pressures inside the shock. Roll control is increased and so is big bump and stutter bump abilities. There are dual compression and rebound damping clickers too with glove-friendly knobs. The range of adjustability is fantastic and so is the fade control.

The beefy Dual Shock Pro 46 rear suspension can take major abuse too. It’s the same suspension used in Yamaha’s racing efforts. There are reinforced rails, suspension arms, mounts and the lightweight tunnel is reinforced. The tunnel has an 11-degree tip-up as well providing a lot of ground clearance.

Big snow evac holes are a plus on the boards as well as the ability to really “lock-in” with your boots. There is also a 46mm 3-way clicker rear shock in the Dual Shock Pro 46 suspension. You can adjust high- and low-speed compression damping and rebound rate. The front shock in the rear suspension is a C40 R16 HPG dual clicker adjustable model, so suspension tuning is almost limitless.

Powering the Nytro is still Yamaha’s proven 3-cylinder 1049cc 4-stroke liquid FI motor with 3 into 1 rear exiting straight exhaust pipe. 138-ish horsepower makes it the strongest sled in this class. Yamaha’s own EBRS system (engine braking reduction system) is standard too. Airflow and cooling on Nytro is aided by a forced air radiator ducting system that pulls new air in around the headlight and jams it through the radiator fins. Better airflow means a more consistent and stronger running engine that stays cooler.
The rider positioning here deserves congrats. Unfortunately other small things like a poorly designed mechanical reverse and hard-to-use hand and thumb warmer toggles can make you forget how comfortable the seat, hooked bars, riser, steering post angle and other things are.

We appreciate Yamaha’s use of replaceable bearing wheels, but this is not a new technology either. Nytro does run extremely well on regular unleaded gas though, and we like that!

Nytro downers
Shock technology MUST be good because the balance of the Nytro in the big bumps and predictability in the corners are not as good as the other sleds here. It’s also heavier, therefore needing the extra solid shock package.

The FXG2 front suspension is still not as flat or confidence inspiring as the suspensions used on the other models in this comparison. Also this is the coldest sled in the group for long rides and needs some kind of storage.
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