IJSBA · Fuel

Aftermarket reed cage / block assembly, IJSBA

Where petals are allowed but the cage is not, a full reed-block kit is illegal.

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This is one body's answer, not the sport's. You are bound by whichever body sanctions the event you enter. If you race more than one series, build to the stricter answer. The differences are set out in the rulebook comparison.

Ski Lites is the trap: petals yes, cage no, so buy the petals on their own.

Where it stands, class by class

12 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.

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.

Not legal 1 class

Any modification to the reed cage assembly is prohibited. · SKL.4.3

• Ski Lites

Not permitted, not listed in the rules 1 class

Not listed in this class document. Illegal under the closed-list principle.

• Runabout Stock · RAS

Legal 8 classes

Reed valve assemblies modified or aftermarket.

• Vintage Ski Limited · VSKL.4.6
• Runabout Naturally Aspirated · RNA.6.6
• Runabout Limited · RAL.6.6
• Vintage SC · VSC.4.6
• Vintage X2 · VX2.4.6
• Vintage Ski · VSK.4.6
• Freestyle · FREST.4.6
• Sport GP · SPGP.7.6

Legal 1 class

Reed valve assemblies modified or aftermarket, reed spacers permitted.

• Sport Spec · section headings, no numbered rules

Legal 1 class

Modified or aftermarket reed valve ASSEMBLIES. · SKGP.4.6

• Ski Grand Prix

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Aftermarket reed cage / block 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 · checks on parts the shop sells · how this site reads a rulebook.