Brake squeal on road disc systems often comes down to pad compound choice. SwissStop developed their Disc RS organic compound specifically to address noise complaints while maintaining the stopping power and modulation that road cyclists expect. The result is a pad that stays quiet across conditions, whether you're descending in dry heat or commuting through wet streets. This silence isn't achieved by sacrificing bite or durability, which is typically the trade-off with softer compounds. SwissStop rates the RS compound at 10 out of 10 for both wet and dry noise performance, matching or exceeding their ratings for initial bite and longevity.

The backplate design sets these pads apart from OEM options. SwissStop uses a 1.6mm steel backing, thinner than standard designs, which allows them to pack more friction material into the same overall pad thickness. That extra compound depth translates to longer service life between replacements. The steel construction maintains the thermal management characteristics and structural rigidity that road disc systems demand, especially during extended descents where heat buildup can affect braking consistency. Unlike aluminum-backed alternatives, steel provides predictable heat dissipation without the risk of warping under heavy braking loads.

SwissStop offers the RS compound across multiple pad shapes to fit Shimano, SRAM, and Campagnolo road disc calipers. The Disc 34 shape covers Shimano road calipers from Dura-Ace through Tiagra, plus GRX gravel brakes. SRAM riders need to identify their caliper generation, as the Gen 1 mono-bloc and Gen 2 two-piece designs use different pad shapes. Each set includes the appropriate return spring where applicable. The organic formulation is rotor-friendly, producing less wear on your braking surface compared to sintered metallic compounds. New pads require a specific bed-in procedure to achieve full performance. SwissStop recommends dragging the brakes on gradual descents, then progressing to harder stops on steeper grades until the compound transfers properly to your rotors.