Rules

Rulebooks

• 2026 Adirondack XC Supplemental Rules & Racing Handbook (Coming Soon)
  
  
• ISR Rulebook
  

Classes available:

Please see " 2026 Adirondack XC Supplemental Rules and Racing Handbook" for class definition and rules.

Youth

• Junior 10-13 550 Fan
• Junior 14-17 550 Fan
• Sport Junior 14-17 (unrestricted 600cc)

Trail Classes

• Trail Novice
• Trail 650
• Trail 860 (Including 4-stroke up to 1100cc - naturally aspirated)
• Trail Pro (all sleds up to 1100cc - naturally aspirated)

Specialty Classes

• Veteran +35
• Masters +50
• Classic 600 (2004 and older snowmobiles - improved stock)
• Classic 800 (2004 and older snowmobiles - improved stock)
• Soo 600 (open to all levels of racers except Pro)
• Snocross (open to limited production factory snocross snowmobiles - improved stock)

Sport

• Sport Women
• Sport Stock
• Sport Improved Stock (including stock 650cc)

Semi-Pro/Pro

• Semi-Pro Stock
• Semi-Pro Improved Stock (including stock 650cc)
• Pro Stock
• Pro Open (including stock 650cc and limited production factory snocross snomobiles)   

*Classic snowmobiles can race in all classes within thier displacement (cc).