What is the Difference Between Single-Piston and Dual-Piston?

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Dual-piston calipers and single-piston calipers differ in their design methods. Below are the relevant introductions: 1. Single-piston calipers: Single-piston calipers are mostly configured in the caliper types found on mass-produced vehicles, generally belonging to the combination of one-way pistons. The brake pads on the other side are pushed by the reaction force of the caliper, hence they are also referred to as 'floating calipers.' 2. Dual-piston calipers: As for dual-piston calipers, since the inner and outer sides of the entire caliper are fixed, the clamping forces of the inner and outer brake pads are each handled by pistons on different sides, hence they are also called 'fixed calipers.' Comparing single-piston calipers with multi-piston calipers, single-piston calipers have unused areas that cannot be filled. To reduce the volume of the caliper body and maximize the piston area, dual-piston calipers were developed.