Originally Posted by
Jon_Ide2316
So I could just swap the spring to a beefier one. Ok that's sounds better than swapping the whole fork. Of course, I probably will eventually. Maybe it will be a happy christmas indeed this coming December?
Yes, you can swap the springs.
Before buying the bike, you should make sure that there's an available spring that will handle your weight. Some manufacturers offer only two or three spring choices, with the stiffest one being designed for people in the 180-225lb range. I don't know about the Dart, but I'd want to check before buying.
You should also check to see that the bike you're buying actually has a coil-spring version of the Dart. I'm not aware that any are air-sprung, but I'm not terribly familiar with RockShox low-end products...