Forgive my ignorance but..... I have a Raleigh frame on which the rear spacing is 126. I Would love to upgrade the existing 6 speed down tube shifters to 7 speed sti type shifters. What are the options? The only new shifters that I can see are Shimano Tourney units (I'm not bothered about top end stuff on this particular bike as long as it works). What other 'vintage' shifters are available in 7 speed?
Cheers.
Cheers.