2026 CLASSES:


Stock Class (N/A) – Under 650, 651-800, 801+, Stock Turbo

Improved Stock Class – Under 650, 651-800, 801+, Turbo

Lake Racer Class – N/A Under 1000cc, N/A Over 1000cc

Kids Stock Class (under 16) – Under 120cc Exhibition, 200cc Junior, 300-600cc Transition

King of the Lake Class – Anything goes!

Winners receive Cash Payout based upon the # of Class registrations.  75% payout to Winners.   Remaining 25% is donated to the Namakagon Volunteer Fire Department & Great Divide Ambulance Service for their service throughout the year.  An additional Cash Purse or other Awards/Prizes may be included in any or all Classes.

STOCK CLASS RULES – $40 per class

  • NO Launch controls allowed
    • Engine must be of stock bore, stroke, and compression for the model year of sled.
    • NO base gasket changes or alterations that change stock engine dimensions.
    • Must have stock carburetor and OEM air box for model and year.
    • OEM exhaust pipes.  Aftermarket can allowed (no pipes) but must exit out of stock exhaust hole.
    • Must have stock clutches front and rear.
    • Stock or any OEM track can be used but not shaved.
    • Only carbide tip studs can be used in any amount. NO ice picks, chisels or grinding of studs is allowed.
    • Suspension must be stock for the model and year. NO drilling or relocating of arms or stock wheels.  NO rail extensions.  No aftermarket suspensions.  You CAN lower or limit ride height.
    • Stock or any aftermarket skis may be used, but NO short or shortened skis
    • Use of Stock CDI or ECU only.
    • No aftermarket EFI kits.
    • Only OEM turbos are allowed in Class
    • No pressured fuel systems, aftermarket turbo or NOS kits.
  • Pump Fuel Only – 94 octane maximum for Stock.
    • No aftermarket reed valves or blocks.
    • MUST HAVE WORKING HEADLIGHT, TAILLIGHT in the factory location
    • Working TETHER

     

IMPROVED STOCK CLASS RULES – $40 per class

  • OEM number of cylinders and stroke must be maintained.
    • Pipes/Cans are OK, but must exit out of stock exhaust hole.
    • Aftermarket heads, reeds and blocks are OK.
    • Sled must have stock suspension.  Stock rail stiffeners, aftermarket rails, and rail extensions ARE allowed.
    • NO cleated Tracks.
    • Any carbide tip studs or chisel system can be used.
    • Must have Hood and taillight in Factory Location. Working headlight NOT required.
    • Working TETHER.
    • Any Primary or Secondary Clutches can be used.

 

LAKE RACER CLASS – $50 per class

  • Must be naturally aspirated.
    • Any chassis allowed.
    • NO cleated Tracks.
    • Any studs.
    • Working TETHER.

KING OF THE LAKE CLASS RULES – $50 per class

  • Any modifications allowed.
  • Any fuel or fuel system.
  • No cleated Tracks. Any studs allowed.
  • Working TETHER.