2027 World Championship Hill Climb · March 18–21 · Snow King Mountain, Jackson WY Tickets on sale Nov 1 →
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600 Improved Stock

  • Pro
  • 600
  • Improved Stock
About this class

600cc sleds with moderate performance upgrades beyond factory stock, tuned for increased climbing performance.

Rules

This class runs under ISR hill climb rules

We don’t copy the rulebook here — a copy on our site could fall out of date. Always check the current rules at ISR before you race.

ISR Hill Climb Rules ↗
Racer registration

Registration for this class is handled on RedPodium.

Register for 600 Improved Stock ↗
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