1/2" or 3/8"
with a large torque adjustment range
TÜV certificated
You will need one when you work on your rear wheel, oil filling screw, sump drain plug, handlebar and so on.
You will need a special small and long wrench socket size...
A correct and proper synchronisation of the carburettor or...
A correct and proper synchronisation (for 4 cylinder) of the...