Originally Posted by Igualmente

I recently bought a pair of the Overdrive Pro rollers. I was a total newbie to rollers and am not a particularly strong cyclist. I wanted something with resistance and which demanded some effort from me other than just chugging along. I'm still not perfect from a balance point of view, but no longer have anything nearby to grab if I run off by accident (then again, I don't use clipless and I keep a solid platform on either side so that I can simply step down to a "ground level" that is the same as the rollers... but mostly don't need to). As for resistance, there is plenty for me and in the 20mph range my sense is that there is probably more resistance on the rollers than on the road. As cfboy indicated, intervals are easily done just by changing gears to give you the kind of cadence vs. power output you seek. Also, the rear drum can be turned around to remove the progressive resistance, but I haven't tried that. About the only thing these don't do for me is give significant resistance to acceleration, like on the road, but whatever, I'm in it for fitness.