Just got my nsx ready. I did not paint this one. I bought it pre painted since my raybrig body is still on the slow boat from Japan. This thing weights a whopping 151 grams. Should be strong. I will be the only one running a Tamiya body at my track. The white gravity wheels are not allowed at my track. f

I think the main reason why they won't let you run the USGT Gravity tires from Amain is that they don't want you to mess with the inserts. Personally, I find the cheap foam insert from the pre-glue gravity tires sucks. They crumble after a while with hard and soft spots...but it is what it is.

Rules package? If and when anything changes, we'll let you know. "Package" sounds like we're starting over. That is NOT happening

Our club allows us to mount our own Gravity tires to what ever rim we want. I've still have some HPI rims that can withstand acetone baths and not melt. HST, I've not noticed when I mount new tires, the stock inserts crumbling, or bunching up, granted, by the time the tires are toast so are the inserts. There's been rumours (in the pit's natch') of some using other inserts, can't say for sure though?. When a bunch of us moved from VTA to USGT, it was the tires that was a big plus to us. YMMV Mike ;>,

Recently, I started cleaning my Gravity tires with brake cleaners after every run to get rid of the gunk/stickiness. This is something that I see most drivers do at 360V2, espeically the fast guys. My car does rotate better after cleaning but I’ve also notice that my tires wear much faster. Do you guys observe the same thing or it’s just me. Is there something more gentle then brake cleaners, maybe alcohol or simple green?

Don't use alcohol!
Simple green will clean the tires, but also soften them.
You use brake clean or motor spray because it doesn't leave a residue. But you're also removing a tiny bit of rubber. You've just learned your next lesson, going faster is harder on parts.

Better not be! Definitely not allowed.

So you can use brake cleaner. I have plenty at work. I was wondering since it is so much cheaper than nitro cleaner.

Just remember, that using brake cleaners are hard on you, specially if you ingest it (breathe fumes, absorb through skin etc)

We only have non clorinated. I have been breathing this stuff in for 10 years unfortunately.

If your looking for overall grip, clean your tires after your run with the traction compound you are using, then sauce how you normally would. If you have too much grip and/or traction rolling clean with break cleaner. Break cleaner dries out the tire more and takes away a bit of grip. However if your tires are caked with buildup, break cleaner will get it off a lot easier then traction compound.

We get a lot of buildup after just one or two runs. As you said, brake cleaner does an excellent job in getting rid of the buildup quickly. Then we re-sauce to get the grip level back...usually let it soak for about 5-6min.

Ever since SXT stopped making their own tire cleaner, I've been using Tuning Haus tire cleaner. It's half the cost of SXT 3.0 and is very consistent.