Here are some rules for T.H.U.C.-S.T.I.C.S.
(Three Hundred and Under)
1. 300 c.c. displacement and under
2.
ALL Wanksters are approved no matter the displacement
3.
ALL one lungers are approved no matter the displacement
4.
NO '76-79 TX chassis sleds allowed NO
5.
*48 studs max. no matter track length or width.  Stud length shall not exceed 1/2" beyond lug or cleat.
6. unlimited carbide length
7. Old stoves with a manufacturer's model year of 1970 or earlier will be allowed no matter the displacement
8. suit suckers will be allowed no matter the displacement
9. 18" -20" width track equipped sleds are legal no matter the model year
10. twin cylinder opposed engine sleds are legal no matter the model year
11. Ski Doo Alpine, Aktiv Grizzly or any twin tracked single ski snowmobile is encouraged to participate
12.
ALL Raiders are legal.  (Not to be confused with Scott Raeder)
13. Ski Doo Elite models are legal for competition
14. It is recommended that snowmobile retains its original appearance no fancy paint, original style duct taped seat, rusty skis, cracked hood, etc.
15. Steroid screening will be conducted on racers at a random basis.
It is advised that all participants keep both feet on running boards at all times.
16. Safety equipment for sled and participant are same as
<500 classes.
*New for 2009
This is just a partial listing of the rules for participation in the <300 class
All participants are under the discretion of the white hat holders
The White Hat Holders will review your status as a competitor in the <300 class. If you dominate this catagory on a weekly basis, you will be placed in a class deemed appropriate by the Board of Review.
examples of legal equipment
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