PRO MAX RULES
Track & Traction
1. Any commercially available one piece moulded rubber track allowed. No cleated tracks allowed!
2. Speed tracks and suspensions will be allowed.
3. Track lug height may be trimmed to a minimum of 1/2 inch lug height. No other track trimming allowed.
4. Minimum track width is 13.5 inches.
5. Track must maintain twenty (20) linear inches of length on the course surface when the snowmobile is under full power.
6. Traction screws may be used in the track lugs. Must be installed parallel to track lug. Must not compromise structural integrity of the track. Must be screwed completely into the track lug. Shoulder must contact track lug.
7. Traction studs may be no more than 3/4 inches above highest point of the track or traction lug.
Frame & Body
- Must have sheet metal the same thickness as the tunnel material permanently fastened to the top or bottom of the upper tunnel
surface. The material must be the same width as the tunnel and must extend from the rear of the tunnel to the horizontal centerline of the track drive axle. Tunnels 1/8 inch (.125) thick or thicker do not require this added sheet provided that the 1/8 inch (.125) tunnel extends to the horizontal centerline of the track drive axle.
2. A skid plate (belly pan) is required.
3. Hood must have a top and side cowling and must contain at least one thousand three hundred (1300) square inches.
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