Bicycle Mechanics - simplex retrofriciton shifters on campa DT bosses?

Hi,

Seen many different opinions if Simplex retrofriction will or will not work with normal (Campagnolo) DT shifter bosses. Will they. I have attached a pic of the type of shifters I am talking about. They do not have this curved "washer" that comes with shimano shifters hence I am not sure if they work and if they work right out of the box or if I have to do some modificaitons to get them to work.

Thankfull for any hints ;)

238270

They'll work fine as they are on standard Campy-style shifter bosses. They weren't intended to have a decorative fairing, which is what the Shimano "curved washer" really is, between the shifter body and the down tube. Just screw 'em on and enjoy them. Use a good sized flat-bladed screwdriver so that when you snug them the blade doesn't jump out of the fairly wide but quite shallow slot and mar the screw head. That's the only thing I didn't like about those shifters -- they really rock in every other way that counts.

Thanks! May the ebay gods be with me :)

Shimano supplied curved washers with their early dt shifters as they were expected to be used on "standard" (i.e. 1-1/8") diameter downtubes and the washers matched that curvature. Later versions of their dt shifters came with flat washers so they would be compatible with various larger diameter downtubes.