The wheels have flanges on the inside edges, they keep the wheels on the rail. The wheels would not stay on the tracks without the flanges.
The top of the track is rounded, and the wheels on the train are also slightly rounded, at any one time there is only the surface area of a dime touching the rail, this along with incredible weight and the flange on the wheel keep the train on the track.
Hot Wheels Track Attack happened in 2010.
Hot Wheels Track Attack was created on 2010-11-23.
Hot Wheels Stunt Track Driver happened in 1998.
Road Wheels-these run on top of the track. Friction Wheels-these either run on the inside or outside of the track, depending on the builder. They are used to make sure the car doesn't go off the side. Upstop Wheels- these are on the bottom of the track so that when the car gets airtime or goes through an inversion, the car stays on the track.
Hot Wheels Stunt Track Driver was created on 1998-10-15.
wacky, wobbling wheels, whirlded wildly down the track
Widening the track. Also called spacing the wheels.
In the toy store
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