I'm overhauling a 1973 Schwinn World Voyageur.
The headset cups read 30.0 on a digital caliper; the fork crown race is 26.4.
Most headsets I've looked at ship with 27.0 races combined with 30.0 cups.
Can I substitute a 26.4 crown race from within the same manufacturer family?
Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder
Maybe. Are the ball sizes the same for each race? How is the dimensioning of the race at it's base/seal fitting? There's a lot of class B fits out there but without actually trial fitting i wouldn't want to make any promises. Andy.