QUOTE(Mblizzard @ Jun 11 2013, 04:46 PM)
Ok so lets cut him a little slack. He has a bike with down tube shifters so he can't be all bad. A little old school maybe but nothing wrong with that. But a bike on a car catches a surprising amount of wind. Considering how much that may flex the roof, I would try for at least one solid mount into metal. Given the amount of flex that can be introduced to the top there is potential for failure in the long term and extended use. Tying it in to the targa bar ski rack holes would may it viable for long term use.
May not be a priority for some, but getting a bike on a 914 is no small task. I have seem trunk mounted arrangements that used the targa bar.
Mike, you have a good eye for bikes. The one pictured is actually my girlfriend's. Mine is a 1977 Gios Torino with 10 speed tube shifter, and tubular tires ... really old school. Much more fun to ride than a high-tech graphite bike with 27 speeds.