Pete Go out on bike on your own Find a downhill where you can freewheel without accelerating madly
Reach forward and turn off the ignition and pull the clutch in NOW Practice using the brakes
N.B. IF you are not slowing you have two options Turn the ignition back on and servo should go active very quickly !!
N.B. II Just in case it does not ............ You have two big 1/2 litre paint pots slapping up and down in the engine....
Kill switch off and Let the clutch out slowly and you have a brake! change down and you have even more brake
Its all manageable If you know what to expect
the clutch and change down braking was when I was off roading on a modified road ABS bike (No ABS off switch) and ABSII was working well on the muddy surface and was not helping me to stop the bike so I hit the kill switch and used a combination of the clutch lever and changing down gear to lock up the wheel and slide to stop and about half an hour after getting home a new ABS "On/Off road" switch was added