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What is the difference between a floating and a fixed caliper?

April 26, 2017caliper difference fixed floating

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What is the difference between a floating and a fixed caliper?

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A normal road car has floating calipers. Those types mostly have one single piston on one side of the caliper. When applying pressure (through braking), the piston pushes the pad against the rotor. As a result the rotor gets pushed against the opposite pad. Fixed calipers have pistons on both sides of the rotor, resulting in hydraulic pressure on both sides at once.