What class can I run this in?

[Bling]

Is this okay for L/W Formula 40?

[Protein Filled]

Hmmm, interesting... Sorry, but I think that classifies you as a Cheating bastard!

:-)

Actually, the rules say unlimited displacement for singles, but it also states: Purpose built road race machinery such as Yamaha's TZ 250, Honda's
RS 250, etc. are excluded from Lightweight Formula 40.

So, when can I ride it?

[Bling]

I resemble those remarks!

[K3 Chris Onwiler]

Yeah, but there's also something in the rulebook about it being at the discretion of CCS (RE:  Aprilla RS250, which was never a legal roadbike in this country).  I'd call and ask, but if Kevin OKs it, GET THAT IN WRITING to avoid future confusion.