Tapley meter is used to test the brakes of 4 wheel drive vehicles as they cannot be checked on a 2 wheel brake tester. My last 3 wheeler used to be tested at an MOT station which tested Reliant Robins et al, so we put it on the ramp backwards so the rear wheel sat in the jig. We managed to test all the brakes on the rollers as they had a flat floor and a 4 post lift and not a pit. After 3 or 4 years of testing it they got to know me and the car so the testing got less and less and the chatting more and more. Make friends with your local tester.
