Flat Track bike on road race course?

So I bought a Yamaha YZ250F set up for flat track (Durelle Racing) and was considering running it on race course (Gingerman Raceway if it matters) for wet track days. Stupid? Wondering if anyone else has ever tried it, terrible idea, etc.

 

Would change gearing & tires, of course.

 

Probably be a blast on a smaller track. Go for it.

 

Not stupid at all. I imagine you'll need to make the front brake functional.

JD Beach got some practice in at Talladega GP on his Estenson Yamaha a couple of years ago in preparation for some AFT events that had paved sections.

Tire pressures would be the biggest question.

 

You could also pick up some cheap 17" sumo wheels for it and run some slicks/dot's. It'll sit pretty low with the smaller wheels on it, so be prepared to drag some foot pegs.

 

They are stupid fun. Although the 250 will suck on the straights, the flat track tires are super fun on pavement.

LOL true story, when I first started "Road Racing" my bike was a GSXR 600 and wasnt legal for AHRMA so I couldn't race it at Daytona, I cant remember the year, but must have been 2004ish
so long story short, I took the shrouds off my Pro Flat Track 450, put on my springfield mile gearing and CD8 and almost won Daytona. I believe his name is Hoogerhyde beat me or maybe it was Gary Dipetrio on his 6000000cc KTM dakar conversion bike
or whatever the fuck that was.

Anyways, the dirt track tires are very fine, they just move a little. If you have ridden rains on a dry or drying track, its kinda like that, except more stability because the rains are still softer than a DT5 or 8.

Somewhere theres video of me, feet on the pegs, full lock on my 450 at Jennings through turn one about 1 foot from the top, over and over again....

Hmmmmmm I have a stock pipe, and a KTM450 flat track bike, and I am going to Jennings in a week..........

 

Thanks for the feedback - much appreciated and seems like a good thing!

 

@jcivince

I have experience with supermoto and flat track setups at Gingerman. My recommendation comes down to the front end setup.

If you have the stock triples or aftermarket triples with a stock offset (20mm offset or more), then keep the 19" wheels / tires and run as is. You'll need the trail. Maybe even lower the rear just a touch (if possible). The big flat track tire creates a lot of gyroscopic effect and improves stability.

If you have aftermarket triples to lower the offset closer to 14mm or so then you can run the 17's. Try this on the stock triples and you'll have ZERO front end grip at lean, the bike wants to tuck the front on Gingerman's longer, faster corners.

-T

 

Thanks!!!!

 

While I don't like naked/upright bikes on a track;

This is an awesome idea! Without having done it, I think it'll be great! On a wet track.

I approve LOL