Custom trigger disc to suit the Austin A Series engine.
Dimensions are 122mm diameter (excl teeth) 19mm centre hole
trigger discs are designed in house at Webcon and are precision laser
cut from 4mm Zinc yellow passivate finished mild steel.
to an angular tolerance of .2 degree and to within 0.2mm accuracy, the
new Webcon trigger discs also feature a built in counter balance to
compensate for the missing tooth and to provide perfect balance.
trigger disks are designed to work with the Alpha Engine Management and
Ignition systems, but are also suitable for use with all aftermarket
EMS and ignition systems.