Madstad Mod and GPS mount - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 14 Old 09-06-2010, 06:29 PM Thread Starter
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Madstad Mod and GPS mount

So I'm running a Madstad bracket with a Givi screen and at times the whole assembly seems to flex a lot. I decided to make/install a GPS mount that will increase lateral support for the bracket and hopefully will take care of the flexing. I have a bar mount RAM mount and will be reusing all the parts to relocate the GPS to a central spot over my dash.

First I moved the pivot bolt from the top to the bottom hole of the bracket. This will bring the windscreen closer to the fairing and eliminate the headlight glare I get on the underside of the screen (the flat black part)



Bent up the GPS bracket/support 6 in wide with 1 in tabs on each end out of aluminum stock I found in my garage. Drilled holes for the Madstad pivot bolts and the RAM ball. Bolted together. The only thing I needed to buy were 2 bolts to mount the RAM ball to flat stock. Cost 24 cents.





Put the assembly together, centered on the dash and ran power...



Final views...









I can still adjust the windscreen but I have found the sweet spot so no need...

[B][COLOR="Blue"]Chris[/COLOR][/B]
DL650K7 Silver

Old rides:
'69 Suzuki 305
'81 Honda CB400T
'78 Kawasaki KZ 750
'83 Yamaha Virago 750
'86 Honda Shadow VT700C
'87 Kawasaki Ninja 750
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post #2 of 14 Old 09-06-2010, 07:25 PM
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This is what I did. I used rectangular aluminum tubing, painted black, because it is much more rigid. Drilled access holes in the top and used the Madstad mounting screws to hold it. Secured the RAM mount with 1/4-20 carriage bolts.


2005 DL650 (sold) | 2009 DL650A (sold) | 2008 Tiger 1050 ABS | 2012 WR250R | 2008 CRF100F
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post #3 of 14 Old 09-06-2010, 07:30 PM Thread Starter
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Yeah...
I figured I wasn't the first.

Does the bracing help with the flexing in your experience?

[B][COLOR="Blue"]Chris[/COLOR][/B]
DL650K7 Silver

Old rides:
'69 Suzuki 305
'81 Honda CB400T
'78 Kawasaki KZ 750
'83 Yamaha Virago 750
'86 Honda Shadow VT700C
'87 Kawasaki Ninja 750
'81 Yamaha Maxim 550
'02 HD Road King
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post #4 of 14 Old 09-06-2010, 08:38 PM
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Have you ridden with yours down a dirt road yet? That's the test.

That's why I went to the tube. Takes about 10 minutes to make. HD and Lowes have 1" rectangular aluminum tubing. Rock solid. Note, though, that I bought a different RAM base - $8 - that mounts more rigidly.

2005 DL650 (sold) | 2009 DL650A (sold) | 2008 Tiger 1050 ABS | 2012 WR250R | 2008 CRF100F
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post #5 of 14 Old 09-07-2010, 01:05 AM
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Brilliant! Thanks guys. I needed a project for tomorrow.
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post #6 of 14 Old 09-07-2010, 03:17 AM
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Okay i was just about to head out and design something along these lines as i have ordered the Ram mounts myself, great ideas thnx.

The only question i have will any of the above afect the airflow of the screen and therefore create buffeting ??

[URL="http://ridetasmania.blogspot.com/"][B][COLOR="RoyalBlue"]Ride Tasmania[/COLOR][/B][/URL]

[COLOR="RoyalBlue"][B][U]Suzuki DL 650 V-Strom[/U][/B][/COLOR] [SIZE="1"]Farkles - Madstad screen mount, Barkbusters, Givi e41 paniers, Gps, Motech engine guard & skid plate, Chad topbox.[/SIZE]
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post #7 of 14 Old 09-07-2010, 07:46 AM
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Quote:
Originally Posted by garandman View Post
Have you ridden with yours down a dirt road yet? That's the test.

That's why I went to the tube. Takes about 10 minutes to make. HD and Lowes have 1" rectangular aluminum tubing. Rock solid. Note, though, that I bought a different RAM base - $8 - that mounts more rigidly.
Questions: I just ordered my GPS system and now into the mounting decision and I like your tube mount. What was the measured cut length of the tube that worked for you? Also, you mention a stronger RAM mount. I was considering the RAM B-201 connected to the tubing, with the standard B-238 socket arm up to another B-201 mount diamond plate to the cradle for the 1250 Nuvi. GPS city sells a kit (RAM-B-138-GA33U) that is basically this setup but instead of two - B-201 plates, they provide one B-201 with a B-202 universal round mounting plate (which looks like what you have connected to the back of your cradle). Is this the stronger setup you have? If not, could you provide the parts used in your setup?

Thanks!
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post #8 of 14 Old 09-07-2010, 03:13 PM
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I believe it will vibrate the way you had the bar installed.

I did very similar to garandman but I used angle aluminum as opposed to tubing. Attached the same way. I used this mount on a couple trips and I'm still up in the air as to which way I like better. This way or mounted on the right side handlebar.
My GPS is 3.5in screen and it's harder to see at the windshield mount, I use mine in an aquabox. It's also harder to adjust the windshield and I do that every ride.

here's the mount...


Ken

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post #9 of 14 Old 09-07-2010, 10:24 PM Thread Starter
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Quote:
Originally Posted by Indie View Post
Okay i was just about to head out and design something along these lines as i have ordered the Ram mounts myself, great ideas thnx.

The only question i have will any of the above afect the airflow of the screen and therefore create buffeting ??
I did not experience an increase in buffeting.

Quote:
Originally Posted by JLW1829 View Post
... What was the measured cut length of the tube that worked for you? ...
I measured the distance between the brackets of the Madstad as 6 1/8 in.

Quote:
Originally Posted by maggot View Post
I believe it will vibrate the way you had the bar installed...


Ken
A few observations...

Love the new centered position of the GPS. It's 4.3" in diameter so easy to see. The windshield shakes a lot less but some buzzyness is getting through to the GPS and fuzzying the display momentarily. Blame the long RAM mount arm I guess...

If I pad the dash with some foam rubber I think it will minimize most of it.

[B][COLOR="Blue"]Chris[/COLOR][/B]
DL650K7 Silver

Old rides:
'69 Suzuki 305
'81 Honda CB400T
'78 Kawasaki KZ 750
'83 Yamaha Virago 750
'86 Honda Shadow VT700C
'87 Kawasaki Ninja 750
'81 Yamaha Maxim 550
'02 HD Road King
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post #10 of 14 Old 09-08-2010, 11:31 AM
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Quote:
Originally Posted by JLW1829 View Post
Questions: I just ordered my GPS system and now into the mounting decision and I like your tube mount. What was the measured cut length of the tube that worked for you? Also, you mention a stronger RAM mount. I was considering the RAM B-201 connected to the tubing, with the standard B-238 socket arm up to another B-201 mount diamond plate to the cradle for the 1250 Nuvi. GPS city sells a kit (RAM-B-138-GA33U) that is basically this setup but instead of two - B-201 plates, they provide one B-201 with a B-202 universal round mounting plate (which looks like what you have connected to the back of your cradle). Is this the stronger setup you have? If not, could you provide the parts used in your setup?

Thanks!
To clarify, I have a Zumo and use components from that setup - cradle etc. I did not buy a separate kit.

I'm not even sure now if I did buy an extra part. It appears I took "RAM with U-Bolt base" part and mounted it on the tube. I'm not sure which unit that came with as I have several.

The proof of the pudding for any of these mounts is if they vibrate on rough roads. The RAM ball is rubber coated so it provides some damping, but if the mount isn't rigid, the GPS is going to vibrate too much to read easily (not to mention any longevity issues). Before I got the Madstad, I mounted the GPS using the standard hardware to the plastic cover bracket that is under the stock windshield:


Once I got the Madstad, I needed a new mounting base. What you have is a mass cantilevered out some distance, so didn't think a bar or angle bracket was going to be anything like rigid enough. They were going to look fine, and work OK on smooth roads, but were going to vibrate like crazy on rough surfaces.

So I went to the rectangular aluminum tube. I tried to make everything as short and stiff as possible. It is a 6" long, 1" rectangular aluminum tube + base + short extension + the GPS cradle. It so happens that standard 1/4-20 carriage bolts are captured perfectly by the mount. I used nyloc nuts to hold it in place.

You can buy a couple feet of 1" rectangular aluminum tube for a few bucks at any HD or Lowes. I drilled two small holes to use the Madstad bolts, then drilled two larger holes on top to access them. Primed it and painted it with semi-gloss rattle can black.

The GPS doesn't move and is right where I want it.


Side view.


Repost of front view:


I actually thought about having a batch fabricated and powder coated, but other guys were trying to sell their own mounts and I didn't want to rain on their parade, the market is very limited, and it will take you longer to go to the store and buy the material than it will to make this one.

2005 DL650 (sold) | 2009 DL650A (sold) | 2008 Tiger 1050 ABS | 2012 WR250R | 2008 CRF100F

Last edited by garandman; 09-08-2010 at 11:37 AM.
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