Parts that I'd like to see made by Pressureangle are foot peg lowering brackets, similar in design to what was used on the Centauro.
They wouldn't have to be cast aluminum, simple plate steel might be cheaper and stronger. The Guzzi parts are hard to find and silly expensive for what they are.
Also since Chuck no longer is making the "lucky Phill" shift extension arms, this might be another possibility.
I'm very glade that they are still making the Roper plates.
