Most likely you have the Later model 1" center to center bracket if its a 700. It still possible that it has the earlier bracket which used a 1 5/8" center to center caliper....you can eaisly find calipers with that spacing, but they wont work :doah:
I actually have both kinds on the bench right now. I just recently bought a 200m off another type of bike that used it on a jackshaft application to play with and try to modify the back plate of the caliper to fit a lil indian.
The important things to note are the pin orientation, they run parallel with the bottom frame rail when mounted on the bike. If you have the earlier/larger style bracket note that there is not an extruded gusset in the center of the caliper (sunk in where the 200m markings are), most current calipers are gusseted/built up there which prohibits it from working with the stock bracket. The pin orientation will create a problem as well with the bracket as well and also be problematic with the arm location.
Another big problem is backplate clearance, you can see that the later 1" spacing caliper on the right that the backing plate is threaded for the bolt, The one on the left should be as well so the bolt does not protrude past the plate. This stuff is on the bench right now because I am experimenting with the backplate on the 200m The mini bike versions were threaded and ground down flat so they could squeeze between tire and sprocket, I got the ground down part done, thought I had a time-sert kit for 5/16 to get some thread in the holes and I only have 1/4 20 size :doah: so I am currently at a standstill there :censure: Not even sure at this point if a time-sert will work, It may be a better idea to simple have someone machine a new backplate out of some aluminum stock and just thread the holes though.
basically your up a creek when it comes to easy breezy affordable fitment on these bikes
