Re: Tensioner Redux
You're right, that is a hole from an earlier mount. I was hoping to use it again but the width of this rubber roller dictates placement further forward away from the hub in order to clear the spokes.
Right now I have it tightened down pretty firmly with some grade 8 bolts. I thought about just dropping an internal tooth washer between the bracket and the chain stay as an alternative rather than drilling a second hole. It would damage the paint but not potentially weaken the frame.