Anyone remeber the Valentino Ribi designed "quadrilateral"?
We’ll start with the fork which De Coster convinced Honda to buy the rights to. The man had tested one on his ’79 factory Suzuki when it was made of tubular chromyl and had a pair of Ohlin’s suspending it. It was originally called the “Ribi Quadrilateral”. This work of art is machined out of aluminum; presumably aircraft grade 6000 series, and as you can see runs a single shock unit at the triple clamps. I can count 18 pivot points on it which might explain why this design never went in to production! There are 4 adjustable bars that could be shortened or lengthened to adjust the rake and steering angle. Notice the bump stops to prevent metal to metal when bottoming out.