Even before buying the Streetpilot*, I looked at all the possible mounts and weighed up the pros and cons. In the end, the desire to find a middle ground between the solutions of Airklaus, Bernhard and Andreas arose:
I use the Streetpilot on the Cruiser and my Yamaha SRX 600 and also for aesthetic reasons a mount should not remain permanently mounted on every bike. I did not want plastic. No handlebar clamp. A mount that could be moved without screwing if needed would be ideal. That spoke for the system of RamMount.
Here the RamMount arm medium (90 mm) in connection with the RamMount bracket round. The latter fits the original motorcycle mount from Garmin for the 2610 from the hole spacing.
The handlebar clamps offered by RamMount are m.E. But visually absolutely unsuitable for the cruiser and on the stub axle core of my SRX a mounting is not possible at all.
This is how I came up with the idea of creating a RamMount compatible mount with a cruiser look, without the need for an additional clamp on the handlebars.
The bracket was turned from aluminum and provided with an internal thread M6, which takes a stud bolt.
Here is the complete mount in parts.
Looking for mounting points in the rider's field of vision, there really weren't many mounting points found on the cruiser: The threads of the speedometer bracket and those of the steering head cover.
I chose the latter, because the Streetpilot doesn't cover the warning lights in the cockpit this way. The mounting at the steering head cover also offers the advantage that the Streetpilot can be mounted as "tight" as possible can be placed on the motorcycle without protruding conspicuously far upwards or to the side.
Since I chrome plated my steering head cover, a felt washer was placed between the aluminum mount and the cover to protect the surface. For tightening I simply used the RamMount bracket.
I opted for the 90mm RamMount arm to have sufficient visibility of the display even when riding with a tank bag on.
Alternatively, the use of the short 60 mm RamMount arm is also possible, which brings the Streetpilot even closer to the motorcycle and should be even more stable due to lower lever forces than the attachment to the 90 mm arm.
A combination with the GG clock is also possible. However must be "looked past" with mounted Garmin on the right of the device the watch is not permanently in the field of vision.
It looks tighter on the photos than it is: The steering angle is absolutely not affected.
An advantage of the ball joints of the RamMount system is the free rotation and lockability.
Finally some remarks about the connection to the onboard network. Since I don't drive with GPS all the time, I don't want to see a GPS cable in my cockpit all the time. Optimal would be a waterproof connector in the steering head cover – a project for the next winter. At the moment I drive with a power cable, which is connected to the BMW socket (together with the horn hidden under the driver's seat). The cable I have from the so-called cable with open ends. A standard car plug (available in car and electronics stores or in hardware stores) is used. To do this, I first cut the cable to the required length (the flying fuse is omitted) and set down accordingly. Then the diameter of the cable sheath was reinforced with Schrupfschlauch to get on the one hand a kink protection and on the other hand to minimize the penetration of moisture. As a strain relief there is a cable tie at the end of the cable sleeve.
Without attachment the plug fits into the BMW on-board socket.
With attachment the cable fits into the normal car cigarette lighter.
Conclusion: The offroad-proven RamMount mount offers more than enough reserves on the intended cruiser. The Garmin sits firmly and the rotating and swiveling mount can be mounted and dismantled in a few simple steps and without tools. I didn't think about lockability, because I don't plan to leave the Cruiser somewhere with installed GPS unattended. Removing the GPS and taking it with me seems to be the best protection against theft. A deterioration of the clamping by the renunciation of the rubberized surface of the ball in the original I could not determine. The polished aluminum ball is a unique specimen. Does not interfere much with the overall shiny look of the front of the Cruiser.
It specifically goes in this article not around a tutorial or challenge to rebuild parts of the patent-protected RamMount system. Rather I wanted to show that the RamMount can also be successfully combined with homebuilts. In my case the ball has a diameter of exactly 25.4 mm. The dimensional accuracy of the ball plays a role in the self-construction because of the relatively large "clamping area" of the RamMount system however a subordinate role.
*) I bought the Streetpilot with the normal car mounts, because I did not want to mount the handlebar mount included in the more expensive motorcycle package under any circumstances. The parts used here I got at Comkor (RamMount parts). Shoppingfever (Garmin mount incl. Cable with open ends) ordered.