Originally Posted by
monkeydentity
I just learned from the SRAM site that my rear derailers are actually designed for mountain bikes, but I don't know how that influences the behavior of my bike.
Not really, it just influences the range of gears/sprocket sizes you can use - the longer the cage, the bigger the range. It's also probably a bit heavier than the equivalent road derailleur, but that's a very small difference.