Originally Posted by Chuckles1

Nah, it's the darned Tektro disc brakes. My other bike with Shimano hydraulic disc brakes adjusts easily. The Tektros seem to rub a little no matter what you do. I think the pad retraction is uneven and unpredictable.

Lifting a 55 lb. bike onto the work stand to tweak brakes isn't something I want to do frequently, so I just live with it. So my motor has to overcome 1W or whatever drag the rubbing causes. I was just venting on the Tektros. They do brake well though, with 180mm rotors.