Thank you for that. My speedo on my suzuki did not have a low beam warning so I think you are incorrect there.
Sorry, I though he meant a 80cc because people on here say they are putting a 70s kit on their bikes.
I'd have thought the device they use to test the brakes would travel at a certain speed to which they could compare with the speedo on the bike. But if I am wrong, nevermind. I think its something that could be done though.
the brake rollers only move at a wlking pace..its about the torque and resistance forces being applied as opposed to the speed, plus some speedos dont start working til 10mph