Originally Posted by
cny-bikeman
He is using double rim tape that is too wide to expose the spoke holes on the rim, and too thick to allow the spokes to touch the spoke ends. Tire levers leave a tear when improperly used, not a dimple. Finally, neither proposed "cost" (cause) explains the consistent presence of the two dimples.
The dimples are sign of the tube touching the nipples because of the problem with the rim strip , now ask me why I know ?