The rules do not say 1 class
No chamfering allowance was returned for SKM, unlike the other stock classes. Verify.
- Ski Modified · SKM
IJSBA · Engine
Port chamfering service (within the appendix limit)
Legal in most closed-list classes at exactly 1.00mm / 30 degrees maximum.
Where it stands, class by class
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.
Legal, within limits 8 classes
Permitted subject to the universal limits in ijsba-globals.yaml constants.
- Fixed Steering Ski Stock · FSSK
- Runabout Rec Lites · RRL
- Four Stroke Ski Lites · FSKL
- Runabout Naturally Aspirated · RNA
- Runabout Stock · RAS
- Ski Lites · SKL
- Sport Spec · none - this document uses ALL-CAPS section headings, not numbered rules
- Runabout Limited · RAL
Legal, within limits 1 class
Max 1.00mm (0.04 in) at max 30 degrees.
- Ski Stock · SSK
Legal, within limits 1 class
The only Vintage class with an explicit numeric chamfer limit. · VSKL.3.1
Legal 8 classes
Explicitly permitted by this class document.
- Vintage SC · VSC
- Vintage X2 · VX2
- Runabout Superstock · RSS
- Vintage Ski · VSK
- Freestyle · FREST
- Ski Grand Prix · SKGP
- Sport GP · SPGP
- Runabout Open / GP · ROP
Legal 1 class
Superseded by the full porting allowance.
- Ski Superstock · SKSS
Port chamfering service (within the appendix limit): 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.
Engine · two and four stroke · legal outright in 19 of 20