Last week while checking the underside of the Plus Six for a pre MOT lookover. I can confirm the Plus Six does have 4 pot calipers on the front, they are of a overall physical size similar to the Caparo 4 pots fitted to the 3.7 Roadster, but the Plus Six caliper 4 pot has a different manufacturer marking.. The Plus Six rear caliper has a mechanical cable operated handbrake mechanism integral to the caliper, it appears to be single pot, but I did not see a slider or slider pins to allow it to equalize as pressure is applied to operate the brake, but at the time I was not looking specifically to see how the rear operated. Just a quick lookover to make sure everything was secure and not leaking etc.. The wheels are back on now, so I missed the opportunity to take a second look. I see looking at the website for 920E as previously posted that they were originally AP then became Caparo and now 920E their web site does not show examples of all their calipers as some images are missing.

Last edited by Davetherave; 22/01/23 10:35 AM.

Dave
Plus Six "Squeak"
Roadster departed.
1936 BSA Empire Star Q8. 1935 BSA W7-35. 1938 BSA M20