UnfilteredDregswrote a review of SportCrafters OverDrive Pro Rollers on February 11, 2016
Familiarity: I've put it through the wringer
I don't want to come into the Spring a fat-ass because of lack of riding during the Winter. I don't do well with ice. Concussion, collar bone, various sprains, etc..
and, I've become more serious/regimented about training. You simply can't go out and hold your LTHR for one hour on the road around here, or do intervals without interruption, like lights, cars, dogs, people...
I bought the Overdrive set and an inertia roller. This is a very flexible mechanical unit. If I want to just spin along in Z2/Z3 I remove the overdrive drum and install the spare regular drum. So, no resistance and you really get to work technique...It's a bit like riding on ice actually!
When I want to do a sustained Z4 workout I put the Overdrive drum in with the red side on the left, it stays at a moderate resistance that way and I can spin up to a real world speed and hold my Z4 for an hour and just sweat out the calories.
If I want to do intervals I flip the Overdrive drum into it's normal position, red on the right, and the resistance scales exponentially depending upon the power you're putting into it...
I do cadence drills where I spin up to 120+ rpm and hold it for 45-60 seconds and then drop it off and recover...
Overall a very flexible training tool that is utterly mechanical requiring no electricity, etc.. they easily fold up for compact storage as well.
Dollar for dollar I'd say these are about the most bang for buck you can get out of a set of rollers considering the flexibility and ease of configuration.
I can work purely on form at low Z HR with no resistance, I can work out at moderate resistance for sustained high Z efforts, and I can kill myself on intervals with the overdrive drum in the regular position where the resistance scales exponentially versus your effort.
...and, rollers keep you engaged. I'm still "in the doorway..." it's going to be a while before I'm riding hands free and such, but I already notice a difference when I hit the road...far more graceful, cadence is purposeful...you'll hold a far straighter line.
I've put 500 miles on them in the last three weeks, I'm actually losing weight...I ended the season at 195, I'm 191 today, and hopefully I'll get below 190# before my Spring training with my cycling club kicks in in March...versus 216# last year after not riding for the Winter.
I'm going to be a much stronger & faster cyclist this year...