12-21-2009, 06:49 PM
I'm with Goat... I didn't see this post until today. 
In N-scale, the problem with code 55 rail is that older equipment won't go through the frogs, because the flanges are too large. Anything produced in the last 10-15 years shouldn't have a problem, but older Atlas, Minitrix, Rapido stuff will have problems.
That said, replacement trucks are available with finer flanges. Not only will they run on code 55, but they'll look much more like rail wheels and less like pizza-cutters.
In N-scale, the problem with code 55 rail is that older equipment won't go through the frogs, because the flanges are too large. Anything produced in the last 10-15 years shouldn't have a problem, but older Atlas, Minitrix, Rapido stuff will have problems.
That said, replacement trucks are available with finer flanges. Not only will they run on code 55, but they'll look much more like rail wheels and less like pizza-cutters.