Pro-level 600cc sleds in near-stock form, emphasizing rider skill with minimal modifications.
700cc factory-based sleds maintained within strict stock guidelines.
Big-bore 900cc sleds running within stock-focused restrictions, demanding precise control.
The largest stock displacement category, featuring factory-based 1000cc mountain sleds.
Age-restricted Pro Masters riders competing on stock-based sled platforms.
Semi Pro riders competing on stock-form machines as they progress toward full Pro status.
Women competitors racing factory-formatted sleds with limited modifications.