The customer who required these had borrowed a couple of old ones from a friend, so I could use them for patterns. Firstly an average measurement had to be taken across the mounting holes. Then the screen was laid on a sheet of stiff paper

Here at Stotfold Engineering we don’t just work on pristine bikes. We work on many bikes that have had a hard life and are in need of bringing back to a good working standard. This one of our customers bikes. He had bought it after it