Is it typical on an R bike with front a disc brake to have a slight "drag" on the wheel when the brake lever is not being pulled? When the bike is on the center stand, with the wheel up off the ground the brake has a slight drag. The wheel will not spin freely.
I know that on cars, the disc brakes never really release completely so is this true also of these bikes? BTW, the cable is not adjusted too tight.
In terms of rolling along, one wouldn't notice except when trying to roll the wheel off the ground.