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Ski-Doo Introduces Refined 2020 MXZx 600RS Sled at Hay Days

New, revamped "Race Special" snowmobile gets suspension upgrades and more
RELATED TOPICS: RACING | SNOWMOBILE RACING | SNOCROSS | SKI-DOO
2020 Ski-Doo MXZx 600RS Race Special snowmobile
2020 Ski-Doo MXZx 600RS E-TEC
BRP turned a few heads at its Hay Days booth this past weekend when they introduced a refined 2020 Ski-Doo MXZx 600RS E-TEC specifically for snocross racing in North America. The new race-edition sled further advances the redesign of 2019, which won multiple championships and dominated podiums last season.

The MXZx 600RS E-TEC continues to leverage the REV Gen4 platform, which delivers a narrow design with centralized mass for agility and responsiveness. The Ergo Step side panels and beveled tunnel gives racers the freedom to ride without interference from the chassis. For 2020, the rear of chassis has been re-designed with a new tunnel, heat exchanger, bumper and taillight. All shocks receive the Integral Base Valve that was seen on the factory shocks from last season. The rear suspension receives a new rail design that’s sturdier, the front shocks have the reservoirs turned inward to protect them in close quarters, and the engine gets a new cylinder design for more horsepower. Additional refinements include a new fuel pump that delivers the last few drops of pre-mix so racers can run with minimal amounts of gas, a stronger brake backing plate to provide consistent chassis performance and reduced load on the bearing, and new suspension and engine calibrations.
2020 Ski-Doo MXZx 600RS inward reservoir position Kashima Coated KYB Pro shocks
Inward reservoir position for the Kashima Coated KYB Pro shocks.
The RAS 3 front suspension features a long spindle that allows higher cornering speeds and a unique power steering system that provides ultra precise handling with less effort. New this year, Integral Base Valves on all shocks add the ability to adjust not only high and low speed compression but also High Speed rebound. Often seen as a factory only component in the past, these new adjusters are now offered as standard equipment to all racers. Changes were also made to the front shock reservoirs by having them turned inward for protection in case of contact.

The Racing rMotion skid frame is 137 inches long for maximum traction and holeshot performance. All four KYB Pro shocks (40 mm front and 46mm for both rear) are Kashima coated for less friction, longer life and consistent performance. All 2020 shocks will have new calibrations, with the ski shocks and rear shock featuring high and low speed compression and high and low and speed rebound adjustment, while the center shock features high and low speed compression and high speed rebound control. A new mechanical holeshot device has also been added to allow for more efficient weight transfer and quicker response off the line.
KYB Pro Series snowmobile shocks new base valve precise tuning
All KYB Pro Series shocks feature a new base valve for more precise tuning.

The Rotax 600RS E-TEC engine gets a new cylinder that delivers more horsepower above 6000 RPM, with new calibrations for stronger starts and better pull in high load, deep bump situations. The Rotax engine features E-TEC direct injection, booster injectors first deployed on the Rotax 850 E-TEC, a short intake tract with double reeds and digital eRAVE.

The Brembo brake system gets refined with a new larger, stronger backing plate that ensures the chassis and brake stay in alignment while reducing bearing load and wear. The four-piston brake caliper is located for easy maintenance and mated with a stainless-steel rotor to deliver the stopping power required in rugged snocross race.

Chassis changes include refinement to the lightweight Lexan hood and LED lights, along with the new, straight rear bumper that works better with the tilt tunnel, plus a redesigned heat exchanger for increased cooling.
137 rMotion Racing suspension 46mm KYB Pro Shocks new rail design
137 rMotion Racing suspension with 46mm KYB Pro Shocks and new rail design
2020 Ski-Doo MXZx 600RS Race Special snowmobile
The new tunnel starts to tilt farther forward, under the seat, as part of the newly designed heat exchanger
2020 Ski-Doo MXZx 600 RS new holeshot device
New holeshot device – small but effective

2020 Ski-Doo MXZx 600RS new taillight
New taillight – higher and more protected
2020 MXZx 600RS Highlights
  • REV Gen4 Platform
    • NEW Design Taper/tilt tunnel 
    • NEW Short heat exchanger with internal loop
    • 137” Track
    • Lightweight Lexan Hood 
    • LED Lightweight Headlights
    • Reinforced E and S modules
    • MX inspired seat
    • NEW taillight – moved to seat
    • Racing foot box
    • 5-gallon fuel tank
    • Lower center of gravity
    • High Air Flow Left Vent
  • RAS 3 Front Suspension
    • NEW shock calibration
    • NEW Integral Base Valve Adjuster
    • Kashima-coated 40mm KYB Pro R Series shocks (High Speed /Low Speed compression and High Speed / LoSpeed Rebound adjustments)
    • Rack steering with power assist
    • Long Spindle design (Stronger + better speed cornering)
    • Lightweight Pilot R2 Ski - Reinforced
  • Racing rMotion Rear Suspension
    • NEW rail design – stronger
    • NEW Integral Base Valve Adjuster
    • NEW shock calibration
    • 137” length
    • Lightweight Front and rear arms
    • Kashima-coated 46mm KYB Pro Series piggy back center shock w/ High Speed / Low Speed compression and High Speed Rebound adjustment
    • Kashima-coated 46mm KYB Pro Series piggy back rear shock w/ High Speed / Low Speed compression and High Speed / Low Speed rebound adjustment
    • Optimized geometry (race proven motion Ratio front and back)
  • Rotax 600RS E-TEC Engine (599.4 cc)
    • E-TEC direct injection
    • NEW Mono block cylinder design with Plasma coating- delivering more horsepower
    • NEW engine calibration
    • Intake booster injectors (850-inspired)
    • Shorter intake length (850-inspired)
    • Double reed valves (850-inspired)
    • eRAVE (850-inspired)
    • Lightweight exhaust system (Stainless steel tuned pipe)
    • Racing Throttle Block – Ready for 50% throttle applications
    • Reinforced engine mounts
    • Hot Start Button
  • Drivetrain
    • NEW larger brake backing plate
    • Brembo Brake System – large diameter rotor, easy maintenance caliper
    • pDrive primary clutch
    • TEAM TSS-04 secondary clutch
    • Revised slip gear – Better durability, less maintenance
    • RS drive axle (Lighter)
    • Lightweight belt guard – better air flow
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