Went to the hobby store for a set of wheels, but came back with a little more. My club has 5-6 pylon races a year for 4*40's and decided this is the year I will get in on the action. The planes must use a Super Tiger GS40 and can only have "approved" modifications. It helps me to think of it as a NASCAR race, on paper the planes are essentially the same, but because of the pilot, builder some perfrom much better than others. But the reason I wrote this is how cheap this much fun is going to be: Sig 4*40 $72.99 Super Tiger GS40 $49.99 with tax the total comes to $122.98 Watching other breathe my nitro fumes=priceless.