Corvette Glossary Of Terms

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Inboard Braking System

An automobile technology wherein the disk brakes are mounted on the chassis of the vehicle, rather than directly on the wheel hubs. The advantage is a reduction in the unsprung weight of the wheel hubs, as this no longer includes the brake disks and calipers.

Inboard brakes are fitted to a driven axle of the car, as they require a drive shaft to link the wheel to the brake. Most have thus been used for rear-wheel drive cars, although four-wheel drive and some front-wheel drives have also used them. A rare few rear wheel drive racing cars have also used inboard front disks, accepting the need to provide a drive shaft just to gain the unsprung weight advantage.

Inboard brakes for early racing cars have rarely used drum brakes, although nearly all inboard brakes date from the disk brake era. Corvsport Page References: C2 Overview.