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

  • Pro
  • 900
  • Improved Stock
About this class

900cc sleds with performance enhancements for stronger uphill power delivery.

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We don’t copy the rulebook here — a copy on our site could fall out of date.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 900 Improved Stock ↗
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