Originally Posted by
easyupbug
The above are excellent recommendations and Andy doesodd work outside typical framebuilding. Why would you want to dimple a stay? I know dimpling is done to strengthen sheet metal but I can not imagine denting a chain stay on purpose.
I want to have a little more room for 35mm tires. It currently has 35mm tires, but the clearance is so tight that I would probably be immobilized if I broke a spoke while riding. Not ideal for a bike that I want to use for overnights.
Dimples for more tire space are extremely common for 70's and 80s sport-tourers, even on higher end bikes. I'm kind of surprised this 1979 Trek does not have dimples.