I think, and correct me if im wrong!
The idea is to drag out the older bikes, EG: Pre 80 etc
If it was pre 90, everyone would just ride pre 90 Japanese machines due to the travel and the bikes handle better etc etc.
all we would see is the Big 5 and few Husky's:)
Its nice to see the old Euro bikes making a presence, i personally wouldn't ride one, but i like to look and admire them.
if it was pre 90, i'll only see Jap bikes:)
Just my opinion:)
People choose bikes for a variety of reasons, but almost everyone's bike choice will fit into one or more of the following three groups:
It's what they own;
It's what think is the "best" bike for the class/event;
It's something that turns them on.
Not everyone is out to "win", especially at a Vinduro. If they were, we would already be entirely dominated by converted 1984 model 250cc MXers and 1984 Euro enduro bikes (KTM250GS & Husky WR400s in particular).
If everyone was out to win, nobody would turn up on Motorsport XLs, TL250s, TS-anythings, XL185s, XR200s, Thunder Dogs, Rokons, SL125s, or any of the zillion other "uncompetitive" bikes we regularly see at Vinduros.
Changing to pre-90 would not change that.
I'm not particularly advocating a move to pre-90, but the reasoning behind a strict pre-85 cut-off is not clear to me.