Ski-Doo updates MXZx-600RS race sled

Ski-Doo’s MXZx-600RS race sled has a host of changes and refinements for 2009. According to Ski-Doo, the sled was designed to be the most race-ready snowmobile offered to the racing community.

Last year the MXZx-600RS debuted on the all new REV-XP platform. For 2009 the Valcourt Engineering and Race Shop team has made dozens of improvements which Ski-Doo says will enhance rider control, handling, suspension and durability.

“Our goal was to make the snowmobile easier to race – for both the driver and their mechanics,” says Ski-Doo director of marketing Francois Tremblay. “The changes reflect our priorities of easier handling, better cornering and better suspension at race speeds – along with the need for extreme durability to keep racing costs lower.

“Many of the changes were also the result of direct feedback from X-Team racers and mechanics, from SuperTeams to the grassroots.”

2009 MX Zx-600RS Key Features and Improvements

Powertrain

• Rotax® 600RS engine • NEW dual air intake system • NEW tuned pipe support • Runs on 92 octane fuel

Suspension – NEW Calibration Front and Rear

• SC-5 rear suspension ? NEW rear arm geometry and shock linkage ? NEW, stronger rail design: better cornering and braking ? NEW stronger coupling system on slide rail ? 4 rear idler wheels • Dual A-arm front suspension – NEW geometry for sharper cornering ? Wider ski stance ? NEW steering ratio ? NEW ski spindle ? NEW A-arms ? Adjustable width, adjustable caster • ALL-NEW C-40 Racing Clicker shocks ? 16mm shock shafts ? Piggyback design on all four shocks for better oil flow, higher capacity, smoother ride ? External high/low speed compression adjustments ? External Rebound adjustability on front shocks • Single-keel Pilot™ racing skis

Chassis

• NEW reinforced castings throughout • NEW stronger engine supports • NEW wider, stronger running boards ? NEW rolled edge extrusion ? NEW integrated footrest ? NEW toe hold • NEW seat shape and height for easier transitioning • Exhaust deflector • 20L fuel tank standard; 40L available for cross-country racing • Multi-function gauge package with EGT record mode

Driveline

• NEW track; designed for improved durability, better cornering and holeshots • NEW Brembo brake caliper: stronger casting and better resistance to heat transfer through piston • NEW primary and secondary clutch calibrations: stronger holeshots • TEAM roller secondary: floating design on jackshaft • BRP-design slip gear: better snap ring retention • Stronger drive axle: better welding process • Stronger jackshaft: better welding process