I've got an old iphone that I'm planning on using as a GPS/MP3/speedometer, but keeping it in the map pocket of a tank bag makes it difficult to actually see while on the move. I remembered I had a Techmount stem mount that I used on a sportbike years ago. I had a plan!!!
I went out to see if it'd fit and DAMN!! the top triple is held on with a big chrome acorn nut.
I removed the nut to see if it'd at least fit inside the stem. NOPE. Double DAMN!! This mount is made for 16mm stems. The V-strom has a smaller i.d. stem.
So what's a guy to do? I disassembled the mount, threw the stem insert into the chuck of my drill press and used an old wood chisel to turn 2mm off the shaft. I then cut some new o-ring groves. I left the very top section the original diameter. The new diameter is a tad proud of 13mm.
Now to deal with the acorn nut. I started by clamping a chunk of wood to my drill press table. I then grabbed a 1-1/8" forstener bit (spade bit would have worked too) and drilled a "divot" into the wood. The diameter of the domed section of the acorn nut was just a hair bigger than 1-1/8". Without moving the drill press table, I removed the forstener bit and installed a small pilot bit. I placed the dome of the acorn into the "divot" and drilled a hole that was perfectly centered through the dome of the nut . This is by far the easiest way to drill a perfectly centered through anything round/spherical/cylindrical. I used a step bit to enlarge the hole to 5/8". The shoulder of the stem piece fits perfectly through the hole.
Got everything reassembled and adjusted. Now I've got a perfect mounting location.
Just thought I'd share for those looking for another place to mount ::insert accessory here::.
If purchasing new, it looks like Techmount currently sells their stem mounts as a universal kit that comes with a 13mm (and a few other sizes) insert, so the only modification would be to the steering stem nut. One could likely find a regular non-acorn style nut that would fit too. The bottom of the stem is hollow, so there's no concern with water getting trapped, etc. The acorn nut is purely cosmetic.