On the Fly 250LM the tires that work the best are the PPR 1008. However the car uses the same rims as the 250GTO and the rib width is the same for the Fly classic wheels but the rim itself is just a bit narrow and the tire hangs over just enough to come in contact with the 250LM wheel wells, so here is the fix.

1st Tape the chassis to a tech block with the rear wheels hanging over the edge.

2nd use a 9-volt battery to spin the rear wheels, (use a 9 volt so the tires don’t spin to fast)

3rd using a new exacto blade that you coated in grease or oil, take the knife and using just the tip cut down the sidewall of the tire to match the rim.

4th round out the tires as you like and your done.

Thanks Frank (Voodoo)