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Sparrowhawkdesign 05-12-2011 01:37 PM

BMW 800 GS pictures
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The first two pictures of the 800GS / M72 install. More will be added over the next couple days as the install progresses. Barry

Sparrowhawkdesign 05-12-2011 01:39 PM

800 GS pic
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Second picture.

DirtyDR 05-12-2011 02:05 PM


ClearwaterBMW 05-12-2011 02:53 PM

very much looking forward to watching this thread
i know it's going to be great

camaroz1985 05-13-2011 01:06 PM

Me too. Can't wait to see the finished product.

KCDakar 05-13-2011 01:25 PM


Sparrowhawkdesign 05-13-2011 01:25 PM

mounts on
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Just got our first in house built Sportster trike out the door. Now I can concentrate on this build.

Motorfiets 05-13-2011 02:22 PM


Sparrowhawkdesign 05-13-2011 03:05 PM

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M72D frame mounted on adjustable installation stand. This allows us to level the frame and roll it around while mounting to the bike. B

Sparrowhawkdesign 05-13-2011 03:11 PM

Custom wheel
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We used this custom built Excel wheel. This is the same rim used by Touratech in combination with the spline drive spokes to upgrade stock BMW wheels. This also allowed us to match the rim color on the bike and install the same tire used on the rear.

I don't know if I will get more pics posted today or not. I will be away through the weekend so posts will probably start again Monday.


Sparrowhawkdesign 05-13-2011 03:51 PM

Motorcycle install stand
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This stand allows us to set the preload and initial lean out.

Sparrowhawkdesign 05-13-2011 03:54 PM

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You can see in this picture how we can roll the sidecar up to the bike and align the two. More Monday. Barry

KCDakar 05-13-2011 04:39 PM


Originally Posted by Sparrowhawkdesign (Post 15905151)
You can see in this picture how we can roll the sidecar up to the bike and align the two. More Monday. Barry

I remember that set up! :thumb

ClearwaterBMW 05-13-2011 08:26 PM

i can't wait to see more....
and..... not just of that 800GS install....
maybe a couple of bikes with 400 more cc on their designation... :D

great thread, barry
awesome stuff happening at DMC
and... even more all the time

Sparrowhawkdesign 05-16-2011 10:53 AM

800GS build
1 Attachment(s)
The next step is to connect the A-arms between the bike and sidecar frame. At this point we only snug the bolts as adjustments still have to be made. The A-arms set the wheel lead and put the toe-in close while not compromising ground clearance like can happen with the usual boss/clamp setup. Next we fine tune the toe-in with a turn or two in or out on the heim joints. This will mean rolling the frame stand away from the bike to allow the heim joints to be turned in the required direction. Fortunately the use of the heim joints also allows for easy alignment with the clevis. Once the toe-in looks good we re-snug all the bolts and check the toe again. If it is still good we then torque the A-arm pinch bolts to 80 ft lb. and tighten the jam nuts on the heim joints. One last check of the toe-in is a good idea as it can sometimes move while tightening the bolts.

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