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.