Originally Posted by
nfmisso
Fisher (and maybe a couple others) used 1 1/4 for a few years in the early - mid 90's. Chris King used to make a headset, and there used to be a threadless converter for 1 1/4 but I doubt they are still made... might be able to find one NOS or used though.
Edit: looks like Wheels Mfg. has a press-in adapter to 1 1/8, though then the fork will be an issue...
http://www.cambriabike.com/Wheels-He...lack-HRED2.asp