Originally Posted by
redmedicine
was there something special that i'm missing needed in order to swap the bolts from the two calipers? i just got my 800a's in and was trying to take the bolt out, but i'm not having much luck. any tricks/tips would be great, thanks
Did you remove the allen set screw? There is a small (2mm, i think) allen screw on the underside of the caliper. This screw comes into contact with the main bolt to hold it in position. It functions to control the spacing between the two arms of the caliper, so they don't rub together when the brake is functioning. You must remove this bolt first.
If you've already tried to remove the main bolt, you probably slightly damaged the threads on the main bolt. So once you remove the allen set screw (and the spring!) you'll have to put some force on the main bolt to get it out.
Let me know if that isn't clear and I can take a pic of my 800a's when I get home.