Bosch has produced a series of bicycle headlights called Rotodyn. The following headlight has a chromed body with an integrated mechanical speedometer VDO from 56’s. Initial state The headlight was 100% complete, the light and speedometer worked flawlessly. I decided to disassemble it, […]

One of the visitors to my blog – from Canada, asked me to complete his VDO speedometer from 50’s for his Schwinn Black Phantom bicycle.  I helped him by providing links and shipping a cable and 26”wheel drive adapter to […]

An analog speedometer is a great addition to our vintage bicycles. Speedometers which were made in 50-70′ are true masterpieces and it’s hard to find them in good condition. In this article I will present a short overview of the analog speedometers and the […]