Not legal 1 class
Two-stroke.
IJSBA · Driveline
A material rule, not a part rule. Explicitly banned in several classes.
20 classes, grouped by the answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules.
Not permitted, not listed in the rules Our reading, not a rule we can quote at you. This class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list.
Not legal 1 class
Two-stroke.
Not legal 1 class
Titanium driveshafts prohibited.
Not legal 1 class
RAL.9.1
Not legal 1 class
VSC.6.1
Not legal 1 class
VX2.6.1
Not legal 1 class
RSS.10.1
Not permitted, not listed in the rules 8 classes
Not listed in this class document. Illegal under the closed-list principle.
The rules do not say 4 classes
Not addressed in this class document.
The rules do not say 1 class
No titanium prohibition stated, but no permission either. Titanium FASTENERS are prohibited unless originally equipped.
Legal 1 class
Titanium driveshaft, impeller housing or stator vane assemblies ARE permitted in Vintage Ski. This is the opposite of X2 and SC and worth verifying.
Titanium driveshaft, impeller housing or stator vane assembly: 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 IJSBA class · where the rulebooks differ · signed checks on parts the shop sells.
Driveline · two and four stroke · legal outright in 1 of 20