Minoura Optional Mag Unit

The tire on the roller drum has been compressed much harder than the flat road because the roller drum contacts the tire sharper than ground, so you can get natural resistance from the beginning.
Most people are satisfied with this condition, but those who need more power to build up muscles should install the optional Mag resistance unit.
Mag unit is installed between the mid and rear roller drum, and it is driven by the rear roller via a V-belt.
The resistance level is adjustable by operating the white lever on top of the unit. No remote control version is available because it is dangerous if the cable is caught to the crank arm or wheels during ride.
There is no compatibility on the dimensions between Action Magroller and Advance/MOZ. Each model requires for its own one.