Lightweight Formula 40

[Super_KC124]

As per 2004n rulebook

All machines legal for LWSS, LWSB, LWGP, or Thunderbike are legal for LW40.

Yes Kevin, 800cc liquid cooled, 4 valve per cylinder non desmo bikes are legal.

Isn't 700cc the limit in LWSB and LWGP?

[Super_KC124]

Just looked at the rule book. 800cc is the Middleweight SB and GP V-twin 4 valve limit. What gives?

[Dawn]

Alright everyone, copied from the rule book on the CCS website:

LIGHTWEIGHT FORMULA 40 (Amateur & Expert Divisions)
Single cylinder, Unlimited displacement
Two stroke, Unlimited displacement
Twin cylinder, air cooled, Unlimited displacement
Twin cylinder, liquid cooled, 3 or less valves per cylinder, Unlimited displacement
Twin cylinder, liquid cooled, 4 valve per cylinder, non-desmodromic valves, up to 800cc
Three cylinder, non-fuel injected, up to 1200cc
Four cylinder, 3 or more valves per cylinder, air-cooled, up to 1200cc
Four cylinder, 2-valve, air-cooled, Unlimited displacement
Four cylinder, liquid cooled, up to 565cc
Four cylinder, liquid cooled, 1990 to 1992 model year, up to 650cc
Four cylinder, liquid cooled (oil or water), pre-1990 model year, up to 860cc

THUNDERBIKE (Amateur and Expert)
Single cylinder, Unlimited displacement
Two stroke, Unlimited displacement
Twin cylinder, air cooled, Unlimited displacement
Twin cylinder, liquid cooled, 3 or less valves per cylinder, Unlimited displacement
Twin cylinder, liquid cooled, 4 valve per cylinder, non-desmodromic valves, up to 800cc
Three cylinder, non-fuel injected, up to 1200cc
Four cylinder, air-cooled, up to 1200cc
Four cylinder, liquid cooled, 1990 to 1992 model year, up to 650cc
Four cylinder, liquid cooled (oil or water), pre-1990 model year, up to 860cc
All air-cooled, 2-valve, unlimited displacement

LIGHTWEIGHT SUPERBIKE (Amateur & Expert Divisions)
Single cylinder, Unlimited displacement
Two stroke, liquid cooled, up to 450cc
Two stroke, air cooled, Unlimited displacement
Twin cylinder, air cooled, up to 1000cc
Twin cylinder, air cooled, push rod, up to 1210cc
Twin cylinder, liquid cooled, up to 700cc
Four cylinder, liquid cooled, up to 565cc
Four cylinder, air cooled, 2 valve, up to 750cc
Harley-Davidson Sportsters of unlimited displacement

[Super_KC124]

I guess I should rephrase the question. What brand and model of bike would fall into this catagory? (800cc V-twin)


I think I'll destroke a TL1000. ;D

[tzracer]

Bored and stroked SV?

[duc995@aol.com]

SV too current... not legal

[CCS]

SV's are legal, as are all Thunderbikes, that is why the rules read the way they do.

Good luck, have fun!

[duc995@aol.com]

Doh!  I was thinking Ultra LW Superbike when I wrote that...sorry!

[FullMoonRacing]

I just noticed that Lightweight F40 allows a 800cc, watercooled, 4-valve, (non desmo) V-twin. What bike are they talking about? They only allow LWSB to be 700cc. ??? I know. I ask too many stupid questions.

It's an additional class for the LWSB SV cheater bikes!!