My new-to-me bike with 404s has an 80mm stem on one tube and standard stem with extender on the other. I like the idea of using extenders because I can use standard tubes. But I'm just curious what brands (tubes and extenders) you all use and where you buy them.
I just used the plain old extenders, silver, no core extension, I pretape my tubes with teflon tape. If I flat, just unscrew the extender and screw it on the new tube and I am read to roll. No need for fancy zipp ones etc.