Originally Posted by
wwddww34
It is no different than putting traction compound on the tires. Ultimately it is the Race Director /or/ Track Owner that makes that decision if traction compound, and , or gluing the sidewalls of the tire will be allowed at a particular track.
oh its different
Grinding of tire tread is NOT permitted. Sanding of mold seam to remove seam is allowed. HPI Vintage Slicks and HPI Vintage Performance Tires are not allowed. Tire traction compounds are at the discretion of the track.
No other altering, changing or softening of the tire is allowed. All decisions of the race promoter or track owner are final. No "double stuffing" of foam inserts allowed—only single stock vintage tire inserts are allowed.