For us, E.V. stands for "Egli-Vincent"… not "Electric Vehicles"!
The original Egli-Vincents that were built at Fritz Egli’s facility in Switzerland used the Campagnolo Mechanical Disc Brake which were cable operated. These brakes were the precursors of the modern hydraulic disc brakes. In fact, Vincent builder and racer John Renwick wrote a letter to Dunlop in the 1960’s asking about the availability of a Dunlop disc and caliper that he could put on a motorcycle. Dunlop replied with a courteous “We do not believe that disc brakes are suitable for motorcycle use.” Fritz Egli wanted to supply the new Egli-Vincent with the best equipment available at the time. Campagnolo was certainly at the top of their game with bicycle equipment, but no company had much experience with motorcycle disc brakes.
When Roger Slater took over production he used a variety of brakes. He supplied Laverda brakes and hubs as the U.K. importer of Laverda, but he also supplied Robinson brakes. Many owners in the late 1960’s and early 1970’s used the available racing drum brakes. With the growing interest in Café Racers, numerous reproductions of these brakes are now on the market. These include Oldani, Grimeca, Fontana and Ceriani. Some have an innovative design using hydraulic actuation for the drum brakes… so let’s have a look.