BTH replacement

 BTH replacement units are made to Suit Riley 9hp engines and also fit Pre-War Aston 1½ ltr. Engines.

We use Acetal Gears which need no lubrication and sealed ball races. These are much lighter and smaller than others on the market and are well proven in VSCC events.

Supplied as shown with taper only to suit std. Drive shaft and gear from your BTH Magneto or Brooklands drive dog.

Price £550.00 ex-works

The Replica Bosch 009 Distributor by Powerspark is supplied as a free gift at no charge or responsibility for quality of that part.

Or as shown here with integral drive shaft and Delrin drive gear. Gears sold separately for use on BTH magnetos in Delrin or Bronze.  Please ask for details.

Price £600 ex-works.   Bronze gear add £25.00

Serving suggestion!

A limited number are available with a Lucas DK4 reconditioned and modified distributor.


These are £700.00 complete ready to fit, for the moaners who don’t like the look of the Bosch.

Plus postage.