Snowmobile specifications

1. Any snowmobile regardless of model year manufactured as leaf sprung front suspension.
2. Engine must be of sled manufacture and NOT to exceed 500 c.c. displacement.
3. Engine must be of design and configuration offered in leaf sprung chassis.
4. Must be consumer available non-race specific model. (No limited production race sleds allowed)
5. Stock exhaust only. No aftermarket pipes allowed. Exhaust must be correct for engine application.
6. Updated primary and secondary clutching is allowed.
7. NO flat slide carbs allowed.
8. Stock type steel skis only. Plastic ski skins are allowed. No special racing skis allowed. (Anderson or other aftermarket brand)
9. Ski Stance 36" max. center to center distance.
10.Ski carbide length is unlimited.
11.Stock rear suspension is recommended. Replacement of rear suspension is legal, but must have 6" travel or less. NO SUSPENSION DEEMED AS LONG TRAVEL WILL BE ALLOWED. NO Aftermarket rear suspensions
12.Any rubber track is legal as long as it does not exceed 1" max in lug height. 121" length or less. (cleated tracks are not allowed USSA rule)
13. Trail type traction produces, 96 studs in the center belt Only .500 over lug, Stud can be altered to accommodate length OR 144 studs .375 over the lug. Center belt between the inside edges of slide rails.
14.Studs are to be placed in the center band of the track, located between the inside edges of the slide rails.
15.Tail light must be operational.
17.Must have working tether.
18.Must have current DNR registration with decal displayed.
19.Personal safety equipment highly recommended. (Snell 2000 approved helmet, Tek Vest or Safe-Jac, knee pads, shin guards, elbow pads)

Millennium Vintage Races