Steering stem accessory mount - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 7 Old 07-26-2014, 11:58 PM Thread Starter
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Steering stem accessory mount

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.

2008 Vee - GIVI crash bars, Hotgrips, fork brace, stainless brake lines, CalSci windshield, OEM hand guards, OEM center stand, Fenda Extenda, Garage Pro top box, homemade dash shelf, DR650 shift lever, KLR footpegs, LED fork lights
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post #2 of 7 Old 07-31-2014, 01:52 AM Thread Starter
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More accomplished tonight. I bought a used Griffin Survivor case today for $5. It came with one of those fancy belt clips that you see people wear that makes it look like they're wearing their phone as a heart monitor or something. Anywho, I decided to replicate the clip so I could attach it to my stem mount and have a "quick release" for easy removal of the phone. I would have just sacrificed the clip, but it went directly over the charging port, so I wanted to make one that made the charging port accessible. I had a piece if Schedule 20 PVC that had been heated and flattened for another project a while back. Perfect!! I cut out the desired shape and heated the necessary spots to shape it. Turned out great. Just need to get some better hardware to mount it. The clip slips into the speaker ports that are built into the case (on the right side). The single tab on the left just clips around the case



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Sorry for the low quality pics. I was using an ancient iPhone to take the pics since my current phone was the subject.

2008 Vee - GIVI crash bars, Hotgrips, fork brace, stainless brake lines, CalSci windshield, OEM hand guards, OEM center stand, Fenda Extenda, Garage Pro top box, homemade dash shelf, DR650 shift lever, KLR footpegs, LED fork lights
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post #3 of 7 Old 08-20-2014, 03:30 PM
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post #4 of 7 Old 08-21-2014, 01:46 PM
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Looks great but why not a Ram handlebar mount?

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post #5 of 7 Old 08-21-2014, 02:39 PM
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Anybody know what the threads are on the nut?
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post #6 of 7 Old 08-21-2014, 03:52 PM Thread Starter
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Quote:
Originally Posted by dravnx View Post
Looks great but why not a Ram handlebar mount?
Couple reasons. The most important is because I like to make/modify stuff. It brings me enjoyment. I already had everything needed minus the case for the phone. The thing about the ram mount is that $40 isn't a bad price, but it can only be used if you don't have any protective case or skin on the phone. I wanted something that was a bit more weather resistant. Since this phone won't have a data plan I'll never need to use the earpiece, so I plan on sealing the earpiece port on the case with hot glue (for relative ease of removal). This will make all surfaces that point upward basically waterproof. There will still be open ports on the sides for the charger/headphones, but those won't be affected as much if caught in a downpour.

2008 Vee - GIVI crash bars, Hotgrips, fork brace, stainless brake lines, CalSci windshield, OEM hand guards, OEM center stand, Fenda Extenda, Garage Pro top box, homemade dash shelf, DR650 shift lever, KLR footpegs, LED fork lights
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post #7 of 7 Old 08-21-2014, 03:54 PM Thread Starter
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Quote:
Originally Posted by aggiengr View Post
Anybody know what the threads are on the nut?
I've got a metric thread pitch gauge, but I didn't even think to check when I had it off.

2008 Vee - GIVI crash bars, Hotgrips, fork brace, stainless brake lines, CalSci windshield, OEM hand guards, OEM center stand, Fenda Extenda, Garage Pro top box, homemade dash shelf, DR650 shift lever, KLR footpegs, LED fork lights
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