Thanks to Alan Greenslade (Auckland, New Zealand) who sent me this information in a private e-mail. In Alan's own words:
I recently fitted some Gustafsson tank wings to my Quota. They did not come with any fitting instructions and was difficult to find out any information on where/how to fit them.
In the end I attached per the attached photos. They work very well to eliminate wind buffeting. I'm sending this to you as you may wish to post it on your website for other people fitting the tank wings.
I used 20 mm × 3 mm aluminium strap with rounded ends for the brackets. I turned up 4 spacers 20 mm diameter by approx 12 mm long to mount the brackets.
I also made 4 outer washers 20 mm diameter to take a 6 mm SS dome head machine screw.
I placed the wings on the tank at the desired angle, so the contour of the top curved aligned with the fairing, and bent he brackets to suit. I drilled and tapped (6 mm) the strap and used the original large head fairing screws (reduced length slightly) to attached the wings with SS acorn nuts as lock nuts on the front.
When drilling the wings, grind a negative rake (flat edge) on the drill to prevent cracking. I used a small soldering iron to mark the wings through the brackets holes for drilling.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
Photo courtesy of Alan Greenslade.
Installing Gustafsson Plastics tank wings on a Moto Guzzi Quota 1100 ES.
