Pre-Unit A7 / A10

All the services you will need for restoring the BSA A7 & A10 models from 1950 to 1962 including the Road Rocket, Super Rocket, Rocket Goldstar and Spitfire scrambler.

We offer a quality & professional engine reconditioning service for the BSA Pre Unit engines.This covers all engines from 1950 to 1963 both 500cc & 650cc.  We offer all aspects ranging from precision engineering  to full  rebuild of the whole unit. Of special interest  is the SRM Timing side main bearing conversion.


Full gearbox reconditioning service with precision machining and quality parts .

We also have various clutch and primary drive modifications to achieve the best from the transmission.

Link to online webshop

Available for sale our Web shop are a selection of quality spares to suit the BSA  engine.

We only supply parts that we would use in our own rebuilds and high quality parts that we have manufactured ourselves.

Using our own 'in house' facilities we ensure all the paintwork is of the very best quality to give your bike a refreshed look.

We specialise in  the engine (cylinder heads and barrels) and wheels (hubs, brake plates and forks) paintwork.

Wheel restoration for the BSA Pre Unit twins, from the early half width hubs and later alloy and cast iron types.

All aspects of wheel building and wheel renovation, rims, spokes, painting hubs, bearings, brakes and tyres.

Full reconditioning service for the LUCAS K2F & K2FC magnetos and  LUCAS E3L dynamos.

Electronic ignition conversion kits and special products to improve the performance and reliability.