As much as I could at both ends with a small drill diameter drill. The temptation is there to just grab a big diameter long bit and have at it. Can't do that though. You have to be careful because sometimes the bit will wander/creep and you have no way to control that. You can't even see it happening until it's too late. Ooopsy.

I was tempted to buy tubing, as it is available in many different wall thicknesses. But by the time you have a wall thick enough to be safely taken to 13/16 there isn't enough weight savings to make it worth it for a clunker bike. Especially considering that tubing was way more expensive than rod.

Removing the stock 937 kilogram kickstand more than made up for it.