BRP has upped the ante for the upcoming snowmobile racing season with its 2013 Ski-Doo MX Zx 600RS race sled.
According to BRP, the sled features revised front suspension geometry with better handling in bumps, along with refined engine components to maximize power output in all conditions.
The Ski-Doo racing program saw huge success last year claiming the ISOC Snocross series championship, Eagle River World Championship in snocross, world famous Iron Dog cross country event and the gruelling Cains Quest race. That success was due mostly to the Ski-Doo MX Zx 600RS model using the REV-X chassis – the basis for all Ski-Doo trail snowmobiles.
“Our season last year was one to remember for sure” says Sebastien Thibault new BRP racing manager. “But we don’t rest on laurels and that’s why you’ll see so many changes to an already very successful race sled this year. The team worked very hard to bring out extra horsepower and create a better front end on the 2013 race sled that should keep us on the top (podium) step.”
For the 2013 MX Zx 600RS model, one feature leading the charge to victory circle will be the new front suspension geometry including new top A-arms, taller ball joint and revised spindle and tie rods. BRP says the new geometry eliminates bump steer and keeps camber variation to a minimum as the suspension cycles through its travel. As well, BRP says facers will notice straighter tracking through the rough stuff and sharper turn in at the corners, letting them choose better, faster lines.
The rMotion Racing rear suspension will get a new center shock spring and refined shock valving for snocross applications. The front suspension also benefits from refined calibrations to match the new geometry and rear suspension.
The chassis has been further strengthened with new reinforced front suspension casting mounts and stronger Pyramidal frame members for the really extreme conditions of highflying professional snocross.
In 2012 the MX Zx 600RS received a new motor design, for 2013 that has been further developed to deliver better performance across the entire power-band. Component changes include a new cylinder with revised intake flange, new carbon-fiber Vforce3 reeds, stronger pistons and a new freer flowing exhaust system. According to BRP, cross-country racers will see and appreciate an immediate difference on the top end, while the snocross team will benefit from a stronger pull on the holeshot and out of the corners.
Complimenting the engine updates is a gearing change to 21/49 that allows the clutches to better operate in their sweet-spot and put the extra power to the track.
Recap of what’s new:
Front Suspension * NEW upper A-arms * NEW upper A-Arm Ball joint * NEW shock calibration
rMotion Rear Suspension * NEW center shock spring * NEW shock calibrations
Chassis * NEW reinforced Front Suspension Casting * NEW stronger Pyramidal Frame
600 RS Engine * NEW Cylinder * NEW Carbon Fiber Vforce3 Reeds * NEW Pistons * NEW Exhaust System
Drive Train * NEW 21/49 Gearing * NEW Clutch Calibration