450 single class

[Super Dave]

AHRMA won't let you use 17" wheels on any bike? The rear on the GS is a 17.

Thanks for replying to this, Devin.  I was thinking last week that I needed to add more info to this post...

Older bikes are limited to the older wheel sizes of the era.  A GS falls in the Vintage Superbike category stuff.  Yes, 17's are allowed.  You can use some new cast OEM wheels for that.  I think up to a 3.5 front and a 4.5 rear.  I think the wheels have to come from the OEM.  So, a GS would have to use GSXR/SV/etc. wheels.  I think.  Really want to read the AHRMA rule book on it so you can have a bike that would suit you if you were to do some racing with AHRMA, shouldn't be a problem with WERA vintage then too.  Would keep your market open if you were to sell it also. 

My H1 is a "Formula" era bike, so, as of my last reading, I'm really limited to the 18" hoops.  I could probably put on some cast RD400 wheels or some Morris Mags, but I went with wire wheels.

[roadracer162]

If I am remembering correctly I believe that AHRMA allowed the "Superbike Period Wheels" to be used so as I read it the Morris mags would be allowed for Vintage Superbike. It also stated a GS1100 could be used but limitations to carb size. I also thought that maybe a displacement limit to 1025 for what would effectivel be the 1000 with anything bigger being restricted by carburetion size.

It would be cool to have one of those CB750 Superbike racers.

Mark

[Super Dave]

The only problem with using early superbike period stuff is the size stuff again and getting current rubber.  That was all pretty much 18's.  Bob Barker imports those Dunlop vintage race tires.  Good stuff, but I've burned those down in a set of morning practice sessions at Mid-Ohio on a CB750 set up for F750.  If you go with some 91CBR600F2 wheels on a CB750, you can have current fronts and SV650 current rears.  I think the limitation is 4.5 inches on the rear. 

I have a soft spot for those CB's too, but I'd want a fire breathing, tire smoking CB900F.   

[Tri74x]

Hello all. What's the word on the vintage 3-race series? How do I get in touch with Mike Perry? Got an old Triumph and would love to get back out there.
Thanks, Jason