I searched a little, but there are so many threads that itís hard to find real info. Can someone please educate me a little on trainers? Iím looking for something to use indoors now that the weather is about to snap. I know I want to be able to vary the resistance, but other than that I am pretty clueless. Iím 6í3Ē 240lbs and want to be able to get a good workout that simulates hills as well as distance. The furthest that I ride right now is a little over 30 miles, but I also like to hit a hill in the neighborhood and power up coast down half a dozen times to build up some punch. Any suggestions? I guess I am worried about not having enough resistance. Do most of these have a flywheel to simulate coasting?