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I won a PW shelf at the Rapid City rally. Since I had it anyway, I thought I'd see how the Zumo could be mounted. I had a custom mount built already because Ram mounts bounce so much. The PW shelf mount was even bouncier than the Ram mount. I gave up on it for a few weeks but still felt the need to fix it since the shelf was already drilled and a mount made.
After taking stuff off to the point of reaching the area where the MP windshield brackets connected to the fairing brace, I found more tapped holes than I remembered being there. Some 2" x 1/8" aluminum bar would work fine as a cross brace. I would have to drill the MP brackets to use the second holes from the top. A Madstad should work fine too. It turned out to be the toughest part of the job. The brackets are heat treated and I burned through a couple of drill bits. A reamer was the best tool to get the holes to the right size. The brackets were much kinder to the reamer than the drill bits.
A sandwich of two bars super glued together looked like it would be the best bet for stiffness. The inner one had to be cut out to clear the fairing plastic at that. With the doubled bar screwed in place. I put a piece of 1/2" x 1" aluminum bar under the shelf and marked where it met the doubled bar so I could mark the doubled bar for a notch to be cut out. Once the notch was created, I could clamp the thick bar to the shelf and cut one end at an angle to match the double bar. With those pieces clamped and screwed in place, I JB-Welded a small piece of aluminum to the small bar and the thick bar and held it in place with a pop rivet until the epoxy set.
Being a belt and suspenders type guy, I super glued small pieces of aluminum angle to reinforce the joint. Clamping the pieces together and letting capillary action draw the glue into the joint works nicely. Then more pop rivets in front and a large crosswise screw through the angles and large bar provided mechanical fasteners to augment the glue. Finally, a large screw tapped into the front of the thick bar and another tapped into the GPS mount/shelf/bar connection finished things off.
Things are very solid and the steel Pat Walsh shelf against the cradle magnet provides a nice magnetic attraction for the cradle contact cover when the GPS unit is installed.
After taking stuff off to the point of reaching the area where the MP windshield brackets connected to the fairing brace, I found more tapped holes than I remembered being there. Some 2" x 1/8" aluminum bar would work fine as a cross brace. I would have to drill the MP brackets to use the second holes from the top. A Madstad should work fine too. It turned out to be the toughest part of the job. The brackets are heat treated and I burned through a couple of drill bits. A reamer was the best tool to get the holes to the right size. The brackets were much kinder to the reamer than the drill bits.
A sandwich of two bars super glued together looked like it would be the best bet for stiffness. The inner one had to be cut out to clear the fairing plastic at that. With the doubled bar screwed in place. I put a piece of 1/2" x 1" aluminum bar under the shelf and marked where it met the doubled bar so I could mark the doubled bar for a notch to be cut out. Once the notch was created, I could clamp the thick bar to the shelf and cut one end at an angle to match the double bar. With those pieces clamped and screwed in place, I JB-Welded a small piece of aluminum to the small bar and the thick bar and held it in place with a pop rivet until the epoxy set.
Being a belt and suspenders type guy, I super glued small pieces of aluminum angle to reinforce the joint. Clamping the pieces together and letting capillary action draw the glue into the joint works nicely. Then more pop rivets in front and a large crosswise screw through the angles and large bar provided mechanical fasteners to augment the glue. Finally, a large screw tapped into the front of the thick bar and another tapped into the GPS mount/shelf/bar connection finished things off.
Things are very solid and the steel Pat Walsh shelf against the cradle magnet provides a nice magnetic attraction for the cradle contact cover when the GPS unit is installed.



