Fixed Brake Caliper
A fixed brake caliper has a rigid body mounted in one position over the disc, with pistons acting on pads from both sides.
Compared with a floating caliper
A floating caliper usually has pistons on one side and slides so the opposite pad clamps the disc. A fixed design avoids that sliding action and can use several pistons to distribute pressure, supporting stiff and consistent high-performance braking.
Opposed pistons can use different diameters to manage pad pressure and taper wear, while rigid mounting can give a more direct and consistent pedal response.
The trade-offs can include greater cost, width, mass, fluid volume, and packaging demands. Piston count alone does not determine stopping distance; tyres, disc size, heat capacity, control calibration, and vehicle load all matter. Fixed calipers are components within a disc brake friction-brake system. braking systems