I recently purchased a Luftmeister fairing for my '71R75/5. A Givi windshield (fork mounted) was installed before the fairing. No problems with wobble or weave were experienced with this set up.

After installing the Luftmeister, the bike is now unstable above 70-75 mph, with vehicle generated wind turbulence being a major contributing factor.

Is the luftmeister fairing a bad match with my short wheel based R75?