Understanding Disc Brake Calipers: Types and Potential Issues

Which type of disc brake caliper is more prone to leaking fluid?

1. Fixed brake calipers

2. Floating brake calipers

Answer:

Floating brake calipers are more susceptible to fluid leakage due to their construction and operation involving more parts which are subject to wear and tear.

When it comes to disc brake calipers and potential issues like fluid leakage, understanding the differences between fixed and floating calipers is crucial. Floating brake calipers, often referred to as sliding calipers, have a design that includes pistons on one side only.

When you press the brake pedal, the piston on one side pushes the inner brake pad against the rotor. Subsequently, the caliper slides to pull the outer brake pad into contact with the rotor. This sliding mechanism involves additional parts such as guide pins and seals, which can wear out over time.

On the other hand, fixed brake calipers have pistons on both sides, requiring less sliding movement during operation. As a result, fixed calipers generally experience fewer issues with fluid leakage compared to their floating counterparts. The design simplicity of fixed calipers contributes to their reliability in maintaining proper fluid containment.