Why does the brown one have balance weights outboard of the wheels and the green ones do not? Different versions? My N scale Arnold Krokodile has the weights, my N scale Minitrix does not. Please advise if you can, thanks!
First version where brown with outboard balance weight drive. Next series reconfigured without outboard weights allowing for an increase in top speed with the now more powerful motors. Check this info out: web.archive.org/web/20130216105311/www-personal.umich.edu/~khmiska/_derived/SBB%20Crocodile.htm
