Rod with chamfered ends about 57.2mm long(shorten to 54mm for twin HS4) which has
AUE586 and
AUE587 clamps on to fit between SU twin carbs for the linkage. Quantity of One is usually required per set up plus a
12A310 lever for HS2/4 twins carbs. Some
HS4 set ups use 2
AUC1457 with
AUE586 and
AUE587 when the inlet manifiold is spurius(not original).