It looks like they are using some sort of guide wheels that help it stay on the tracks:
doublespaces Administrator Jul 31, 2017 698 2 18 Jun 14, 2018 #1 It looks like they are using some sort of guide wheels that help it stay on the tracks: https://twitter.com/i/web/status/1007325971689758720
It looks like they are using some sort of guide wheels that help it stay on the tracks: https://twitter.com/i/web/status/1007325971689758720
