Instantly upgrade your existing roller set with an Rd110 overdrive drum. the drum turns your roller set into an interval workout machine, without an external resistance unit or remote Adjuster. as you increase your speed, the resistance increases with a very realistic road power curve. also, this drum adds less than a pound to the ROLLERs - no other resistance unit can make that claim! the progressive resistance drum will automatically integrate with sport crafters and Cyclops brand aluminum ROLLERs. learn more about arc technology and how it's powering our overdrive products.
This drum adds the perfect amount of progressive resistance to a roller workout. The ramp is perfect and lets you spin slower to recover and then ramp up the speed for a maxed out workout.