
DRAG SPECIALTIES Regulator (ref. 74516-86BK) – 12 V solid-state voltage regulator, designed for vintage/classic motorcycles and touring bikes. Its black aluminium alloy casing provides a robust construction and good resistance to vibrations and shocks encountered on the road.
This regulator stabilises the charging voltage delivered by the alternator, regardless of variations in electrical load, without relying on relay contacts that may wear out. It is therefore particularly suitable for older or custom machines that require a reliable power supply for the battery and accessories (lighting, indicators, instrumentation).
Examples of applications: Harley-Davidson FXSTS/FXSTC/FXST 1340 (1988). An ideal part for riders looking for reliable charge regulation and a robust installation without mechanical switching components.