Hi everyone, As I got a lot of tips and inspirations from this site in the past I want to share my story about installing electronic instruments and the speed sensor on my P11A. Don’t expect fancy machine work here . My skills and workshop equipment is limited. After living nearly 30 years with the mechanical Smiths instruments and their well known draw backs I wanted to try the digital ones this time. The goal is that the conversation should look as stock as possible. For the speed sensor I like the Comnoz solution. Because it gets rid of the dreaded tach drive internals. Unfortunately it was sold out. So I had to do it myself. The sensor is a Motogadget M5 reed switch with 2 magnets. An old defective tach drive was stripped and and the sensor installed. The cable runs inside an old tach drive cable which exits in the battery area. A magnet carrier was made and glued with RTV to the rear wheel. 150 km later it is still in place.