The Dunlop Piston Cylinder Assembly, or "Dunlop Cylinders" were fitted as standard to many 1960's sportscars such as the E-Type Jaguar, Mk II Jaguar, Lancia, Alvis and Ferrari. 

We at BG Developments have developed a replacement for the Dunlop cylinder assembly which incorporates the original design and will fit directly in the place of the original.


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In-house - we fully CNC machine the cylinders from HE15 aluminium billet which is then Hard Anodised all over for maximum hardness and corrosion resistance. 

The internals of the cylinder have been completely re-designed and now incorporate an AP Racing seal in bore arrangement and stainless steel piston.  The piston insert has been removed and the steel piston increased in length to compensate. 

The cylinders in this configuration  will work with the original pads that were supplied without back plates as well as with the modern pads that are supplied with back plates which we can also supply from stock. 

The cylinders are supplied with AP Racing high temperature seals for race use or with secondary wiper seal for road use.  Should these cylinders need servicing, pistons and seals are readily available and in-expensive - making them a cost effective way of replacing the original cylinders. These cylinders are fully approved by the FIA for race use.

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We can offer from stock the majority of piston diameters:- 2 1/8", 1 3/4", 1 5/8", 1 1/2" and 1 1/4" with both the standard body size and larger Jaguar MK9 size available.

We also manufacture small batch bespoke bodies and piston sometimes fitted to unique cars.  Please contact us with your requirements.

For 2012 we have commissioned a new Road Car version of the Dunlop Cylinder, as shown to the right. For more information, visit our New Products page.

Finally, we can refurbish your carrier by shot blasting and re-plating to give you a completely reconditioned brake. We also hold a limited number of in-house manufactured carriers both in Aluminium (HE15) and Iron.

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