This is the A REG ONE, single phase Regulator/Rectifier with a 200W high output genuine Lucas Alternator stator.

The original rotor (74MM Dia.) can be used (I can supply new if required) & the 200W stator is a direct replacement for the original

200W will give more than enough power for a bright headlight & electronic ignition.

The A REG ONE Regulator/rectifier is easy to install using the same 4 connections as the rectifier that it replaces.

They are designed to cope with a 20 Amp load so will easily handle a 200W alternator.

Full instructions are supplied

These fit all Commandos. 650SS, Atlas, alternator Dominators, BSA C15/B40/B25/B50. A50/65. R3, All Unit 500 Triumphs, Unit T120/T140/T150/T160 and most other British Alternator bikes 1960 - 1970s and earlier if the existing rotor is 74MM.

(For more information and many other electrical parts for Classic Bikes type  Paul Goff into Google for a link to our website)