Doc only the Scrutineer on the day will tell you that
Me personally if in doubt i will air on the side of caution and wont try to run it.
Then again personally i would BAN all those FAT BARS , EMULATORS , EXTERNALLY ADJUSTABLE SHOCKS, LOW BOY PIPES , WIDE FOOTPEGS, REVERSE FOLDING LEVERS, MODERN RIDING GEAR, (helmets and neck braces exempt , but must be a plain colour)
PRE 85, PRE 90, DOGS, FAT CHICKS, WOGS, ELEPHANT DRIVERS, RAG HEADS, GREENIES (probably dont get many of them anyway
), PEOPLE UNDER 40, GERMANS, WOMAN DRIVERS, ROTARYS, TELEMARKETERS, SPEED LIMITS, MODERN MX 4 STROKES and anyone else who disagrees with my philophosys.
As far as scrutineering goes its my belief were forked, I bought a Shoei helmet in Australia to wear at Australian events only to be told at a major event this year that in didn't comply due to standards markings. Fair enough exept the same bloke passed the forking thing 2 months earlier, it still had the forking sticker on it he put on it 2 months earlier.
When a rule book was produced to show it complied all was well again, so i guess the system works
Perhaps as competitors we need a rule book listing every bike , part , and possible combination of both that are elidgible for every era.
Good luck printing that bastard