There had been a notion around that a 750 needed a 500 drive to make a speedo work. Bunk!
I got a 550 speedo drive based on these instructions and noticed it was the same as the one currently on my 750.
http://www.salocal.com/sohc/tech/dual_disks/dual_disks.htmNeed,
1x caliper arm
1x caliper
1x disc
6x8mmx110mm bolt (for disc)
1xlower brake line (that makes two all up)
1x steel brake line to caliper (which again makes two all up)
1xdouble banjo fitting (for the two lower brake lines)
1x bigger master cylinder (some say GL goldwing mastercylinder are ok.. I used one off a modern dual disc bike)
1xcb500/550 speedo drive plate (no modification)
2x6mmx30mm bolts and washers
1x8mmx35mm bolt and washer
Other than that though the tut looks complete. Anyone with duals up for taking a look and verifying it's good info? He doesn't seem to mention any mods to the drive plate and neither does anyone in this thread but I've seen folks talking about it.
Thanks!