Class rules
Kitty cat
2-4 years old no mods allowed
MICHIGANSNO-X 2022-23 SEASON RULES
Class rules are put in place to keep a safe race environment. Rules at race officials discretion. All participants must be concerned with safety and be familiar with these rules.
No arguing will be tolerated and can end in race day elimination with no refund.
Michigan Sno-x can not guarantee safety even when the rules are enforced. Each racer is responsible to check facilities and condition of track and must assume the risk of racing.
Any racer under 18 must have waiver signed by an adult. All racers must have waivers on file with Michigan Sno-x prior to day.
All racers in any class will be required to have a snowcross style tekvest. (no plastic)
All racers must were goggles or full faced helmets
All sleds must have working tether
Rear snowflap must be intact and touch ground on snocross sleds
No Oxygenated fuels
120 Stock
stock class will be broke down into 2 groups 4-7 and 8-12 years old
4 -12 years old All parts must be purchased no home made parts Only mods allowed
-Adjustable main jet
-Governor bypass spring
-Running board kits (grips)
-Rear idler wheel kits (must be snowmobile wheels)
-Handle bar risers
-stock gears 10 front 42 rear
Factory drivers and Factory skis(older ski doos can put new ski doo skis on if metal)
Track clips on every window
Stock motor from factory
No studs or screws
Mod 120
Briggs 206
6-12 years old No home made parts Only mods allowed are as followed
Must be stock factory motor
Any 120 chassis mods(running boards, handle bar risers)
Any suspension Mods( shocks, rear wheels)
Any steering mods(must be to recs motors specs for width)
Any gear ratio, 35 chain, clutch(no belt drives)
Any 120 exhaust must exit out original hole
Factory carb with adjustable main jet
No motor mods must be stock internals(cam, spring, valves, pistons)
5 tooth track drivers and track clips allowed
Any 120 ski (max 5" carbides)
No studs or ice screws
Factory spec engine( can remove governor gear)
Track clips on every window
Briggs runs with Outlaw
120 outlaw
200cc snoscoot
6-13 years old Any motor, any suspension, any steering mods, Belt drives are allowed
no studs or ice screws, 120 chassis hood must close and exhaust out bottom of belly pan, max 5" carbides, any skis must be 120 platform
200 snoscoots can run in outlaw class in stock form
Sled must be safe
2 different age brackets 6-9 and 10-13 year old.
Must be 100% stock motor No engine mods
Governor must be in tack factory carb with no changes in diameter.
Widening kits, skis, footwells, race shocks are not allowed
Low snow kits and handlebars are allowed
Track clips on every window
Working tach at tech maximum rpm
200's can also run in outlaw class
No studs or ice screws
Full size sleds
High visibility orange required on body
No transponder
Number plates on full size sleds(refer to Isoc for class colors)
Trail class is only class with no number plates
All other sleds with follow Isoc rules with the added throttle block in Transition class and juniors classes
Transition
8-11 and 10-13 years old All 600cc and 500cc sleds will be throttle blocked number plates and no studs allowed Max rpm 6,500 (artic cat, skidoos) polaris max rpm 6,600. Artic cat, Skidoo clutch engagement 4,000 (Polaris 4,100) no cans
No other programable tethers allowed that are not transition specific between trailer and starting line
Junior girls
12-13 years old All 600cc and 500cc sleds will be throttle blocked refer to Isoc rules Max rpm 6,500
No 440 liquid cooled sleds
No cans
Junior boys
12-13 years old All 600cc and 500cc sleds will be throttle blocked refer to Isoc rules Max rpm 6,500
No 440 liquid cooled sleds
No cans
Juniors girls
14-15 years old Throttle restricted sled
Isoc rules
No cans
Juniors boys
14-15 years old Throttle restricted sled
Isoc rules
No cans
senior girls
16-17 years old Isoc rules
no cans
senior boys
16-17 years old Isoc rules
No cans
Trail class
6" numbers on both sides, max 96 studs
Tekvest any racer
Must have tether and trail sticker
No snocross sleds of any year
Amateur Women
Isoc rules First time racer
snocross sled no previous racing history
Beginner
Class
First year racer no cans no mods
No previous racing history must have all safety gear
Sport
Pro Lite
Pro women
Pro
30+
40+
Snow Bike
Vintage(1987 and older)
Isoc rules
Isoc rules
Isoc rules
Isoc rules
Isoc rules
Racer must have 6" numbers on sled
Tekvest, tether
450cc or less one of 22 kits manufactured commercially
Any sled must be in good working condition
Must have breaks
Tether
All sleds will be checked prior to racing for appropriate class