There are two PTC trains on Wild One. One is red, one is blue. The present trains arrived in 1999, and previous trains were three decades old when they were retired. But because parts are continuously replaced and the trains got a major overhaul about a year ago, there aren't many old parts left on the trains.
The transfer track leads to this tall, dead-end segment that consists of non-standard track. The rest of the coaster has rails that lock trains onto the track with wheels above, below, and between the rails, but the trains aren't locked onto this particular section. This allows easy access for the repair or replacement of the wheels. The main wheels, also called drive wheels, and the side wheels aren't anywhere near the track because the cars' weight is actually sitting on the up-stop wheels.