Not legal 3 classes
NO MODIFICATIONS TO THE HOOD are allowed beyond those listed. · 502.01.02-15
- Runabout GP4
- Runabout Juniors GP4 · borrows another class
- Runabout Ladies GP4 · borrows another class
UIM · Hull and handling
Aftermarket hood, UIM
UIM answers this part for 16 of its classes, and publishes no rule for it in 8 more. 2 of those answers permit the part outright and 0 permit it with stated conditions, leaving 14 that do not. 5 of the ones that do not are classes we read as open rather than as refusing it. 11 are inferred from how the class is written rather than quoted from a rule naming this part. 8 are inherited from a parent class the rulebook points at.
This page is UIM only, and the bodies do not agree. The same part under IHRA and IJSBA. Which one applies to you is decided by whoever sanctions the race you enter.
Where it stands, class by class
24 classes, grouped where the same rule gives the same answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules. 8 of them borrow another class’s rules and are marked below; for those, the link to the parent class is read from the categories table rather than stated in the rulebook. 8 publish no rule for this part and name no parent to borrow one from, and are grouped together at the end.
What each answer below means
- Not legal
- This comes off. The rules refuse it in this class.
- Not permitted, not listed in the rules
- Treat it as coming off. The class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list, so this is our reading rather than a rule we can quote at you.
- Legal
- Keep it. The rules permit this part in this class.
- No rule, this is an open class
- Probably keep it. The class carries no stock clause at all, so anything unlisted appears to be open. The rulebook does not say so in terms, and this is our reading rather than a permission anybody wrote down.
- No rule published for this class
- Unanswerable here. This class publishes no rule for the part and names no parent class to borrow one from, which is an absence in the rulebook and not a permission.
Not permitted, not listed in the rules 3 classes
No hood article; ventilation tubes are covered separately.
- Ski Division GP3 · 501.02
- Ski Juniors GP3.2 · 302.01 · borrows another class
- Ski Juniors GP3.3 · 302.01 · borrows another class
Not permitted, not listed in the rules 2 classes
No hood article.
- Ski Division GP4 · 501.01
- Ski Juniors GP4 · 302.01 · borrows another class
Not permitted, not listed in the rules 1 class
The GP4 prohibition is not repeated and the aftermarket-hood permission is a GP2 addition.
- Runabout GP3 · 502.02
Legal 1 class
Aftermarket hoods and modified OEM hoods - the single explicit GP2 hull addition over GP3. · 502.03.02-01
Legal 1 class
Aftermarket hoods may be used and OEM hoods may be modified. · 501.03.02
No rule, this is an open class 5 classes
No hood article.
- Ski Division GP1 · 501.04
- Runabout GP1 · 502.04
- Runabout Veterans GP1 · 302.01.05 · borrows another class
- Ski Ladies GP1 · 314 · borrows another class
- Ski Veterans GP1 · 302.01.05 · borrows another class
No rule published for this class 8 classes
No component rules are published for this class and no single parent class is named, so this part cannot be answered for it. That is an absence in the rulebook, not a permission.
- Endurance · 317.03
- Freestyle Amateur · 312
- Freestyle Free · 312
- Jet Raid · 317.01
- Offshore · 317.02
- Parallel Slalom · 313
- Ski Future Electric (SFE) · 302.01
- UIM Hydro-Fly · 900
Aftermarket hood: if the rule your class applies reads differently to you, or the rulebook has changed since this was read, ask. We answer with the section we read it from, or that we have not read it. Ask a rules question.
Every UIM class · where the rulebooks differ · checks on parts the shop sells · how this site reads a rulebook.
Hull and handling · two and four stroke · legal in 2 of 16 answered