Originally Posted by
noglider
Consider using solder. That might be easier to undo. But what do I know.
Have you considered dynamo powered lights? If you use a hub dynamo, he won't even have to switch the lights on or off. I like 'em a lot.
The wheels my sister-in-law contributed were already built up, so for now I really didn't think about adding a dynamo hub. His former bike is outfitted with lights front and rear (Princeton Tec on the front, Serfas on the rear, both AAA), so we'll switch those over. The elder son, who lives in Minneapolis, has the powder coated and rebuilt 1991 Stumpjumper, and that build does have a dynamo hub with Busch + Muller front and rear lights.