ride, paint, ride
Join Date: May 2005
Location: San Diego
Bikes: Cannondale R300 Caad2
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Originally Posted by staehpj1
Well I may find out since I bid on a set of 105 clamp on downtube friction shifters on ebay before I saw Top506's post. If they have "normal" bosses I may put a set of 105 7 speed sis shifters on them. Otherwise I may just stick with friction only.
I think it will work, even though the shifter/boss interface may not be perfect. I just did this with an old clamp from a set of early 80's Shimano 600 friction shifters. I used that clamp and bosses to mount a set of NOS Sante 7-speed indexed shifters. The left shifter fit *perfectly* into the old mount. The right shifter does not fit perfectly into the mount, but it fits well enough to work flawlessly and it's very secure.
Edit--just realized that the clamp and bosses I ended up using were from a set of Dura-Ace 6-speed indexed shifters. It's exactly the same clamp as the 600 friction shifters used, but included the sort of flat chrome base thing that the shifter unit mounts on. Similar to the half-moon shaped base that sits against the downtube with a braze-on boss, only these base units are made to fit on the clamp. I've seen shifters sold with a choice of either type of base.
Last edited by simplify; 10-24-06 at 10:55 AM.