XYZ Racing Hollow Front Brake Kit — Opel KADETT C (1973-1979)

The Kadett C’s factory front braking system, discs on the GT/E and performance-spec variants, drums on the more modest trims, made complete sense for a compact weighing under 900 kg on roads with 1970s traffic levels. Fifty years on, those same components are managing modern motorway speeds, historic circuit sessions and owners who expect rather more from their fast-road classic. The XYZ Racing front big brake kit brings the front end of the Kadett C in line with what the chassis is actually capable of.

That capability is considerable. The T-body architecture underpinning the Kadett C keeps weight low and weight distribution honest, and the GT/E earned its reputation in period touring-car competition on exactly those merits. A serious braking upgrade here does not fight the car’s character, it completes it.

What this brake kit does for your 1973-1979 Opel KADETT C

Replacing the stock front hardware with this kit brings a marked improvement in front-axle stopping power from speeds the factory setup handles with less composure. The hollow-vane rotor construction improves heat evacuation under sustained braking load, directly relevant in any circuit session where the Kadett C’s lightweight body means the brakes are working hard at every corner entry. The two-piece floating disc lets the friction ring expand on its alloy bell without distorting, which keeps the pedal consistent and cuts rotating and unsprung mass off a car that already lives on being light.

Three pad compounds match the setup to actual use. Street is the quiet, low-dust choice for a road-registered classic. Sport adds bite and heat range for fast-road and occasional track duty. Racing is the track compound for owners competing in historic class events. Braided stainless lines are part of the kit, so the firmer pedal the larger discs deliver carries through cleanly. The caliper finishes are a detail, but they matter on a car that draws attention in any paddock it enters.

About the Hollow Front Brake Kit

This kit takes the braking specification of the Opel Kadett C considerably further than the original engineering was required to go. The hollow-vane disc is a thermal management solution: rotor mass and internal airflow path are optimised together so the disc absorbs and dissipates heat evenly across repeated hard stops, reducing the fade risk that standard cast iron rotors encounter during prolonged use. The caliper is a hollow-body forged unit as standard, with an optional Hollow Racing upgrade that drops the dust cover, carries a 1000C rating and a two-year warranty for historic competition use.

Painted caliper colours are included at no extra cost in Red, Yellow, Gold, Black and Anodized Black. A Custom Color in any Pantone shade is available for £150, with premium polished-forged finishes in Titanium, Polished Gold and Polished Silver and candy finishes in Teal, Blue, Red and Orange, so the front brake presentation can be matched to period livery or left understated in black. Discs come drilled or slotted at the same price, and a two-tone centre bell in five anodized colours or titanium can be added at checkout.

Fitment for the Opel KADETT C (1973-1979)

This kit covers the Opel Kadett C across the full production run from 1973 to 1979, fitting the platform regardless of body style: coupé, saloon, estate or hatchback. Owners running the higher-output GT/E specification or a competition-prepared engine should select the Racing pad compound accordingly. If the car has previously undergone brake modifications or a suspension conversion, confirm the front hub configuration remains standard before ordering.

What buyers also search for

• Opel Kadett C front brake upgrade for historic circuit racing and fast-road use
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• Opel Kadett C 1973-1979 braking upgrade for GT/E and coupé variants
• Front brake disc upgrade for Opel Kadett C classic with hollow rotor construction
• Kadett C braking improvement that suits daily driving and occasional track sessions

Select your pad compound, disc style and caliper colour from the options above when you order.