BG Developments


BG Developments are the UK’s leading manufacturer of Historic Calipers and Discs. We hold many of the most popular Girling designs in stock (AR, BR, CR, ORA, 12/3, 17/3, 16/4, 18/4) and  Dunlop Cylinders. We also hold stock of replacement pistons, seal kits and bleed screws to help to ensure that we can get you out racing (or back on the road).

Our team of specialist engineers attend the majority of the major Historic Motorsport events and are willing to attend test sessions to offer help and practical advice on all aspects brake and clutch related issues.

Call BG Developments on 01527 873716 or contact us and let us know what parts you need and we will do our best to help.


We recently had the pleasure of working on the original GT40 which finished 3rd at Le Mans 1966, (when they famously finished in 1st, 2nd, 3rd formation). We helped put it back to its correct braking set up so that It could compete at the Le Mans Classic. Its previous owner had fitted modern 4 pot calipers, which eliminated it from FIA events.

At the factory, we manufactured the calipers, discs and mounting bells to suit the original uprights, and it has since tested and competed in several races without issue.

historic1  historic2  historic3