This aluminium Plug fits for BMW handlebars with a inner diameter of 15-19mm. Just insert the CNC machined plug in the open part of the handlebar (usually closed with a plastic plug). The plug will stay in place thanks to an aluminium expansion fastener. Garmin and TomTom Motorcycle GPS Units can be mounted without any problems. But you can also adjust the plastic plate very easy for other devices.
Fits BMW R1200S