I'll offer a dissenting opinion. Please let it be just that. I think it's fantastic that you guys ride your old bikes, but why do so many try to put round pegs into square holes by trying to modify vintage technology to perform to modern standards? Let vintage bikes be just that - beautiful examples of aged technology. Wonderfully uncomfortable and frustrating to ride. I wouldn't get into a 68 Mustang and expect my back to feel great after a three hour drive. Nor would I be disappointed that The Godfather isn't available in HD.
I ride the hell out my vintage bikes, but I'm loving them because of their faults. Rigid forks, bad brakes, shit tires all create a different trail experience. Lowering the limit bar turns a normal ride into more of a challenge.
There are many, many posts like these. Your Manitou 2 fork will suck no matter what you do to it. Your cantilever brakes will always perform poorly when compared to V-brakes or discs. I feel many on this site would be happier with a modern 29'er.
Bikes are built to be used, we don't buy 'em to keep a historical record. If we did, then we wouldn't ride them at all in case the Original-Paint-With-Original-Orange-Peel got scratched. So if you're gonna ride it, make sure it's right to ride. Else leave the Museum Piece with it's "Period correct" dryrotted everything in the museum.
If you'll excuse the anorakism, the Godfather is a Film that was filmed on Film (that's why it's called a film), so its been in HD since about 1972?