SwissStop RS 29 Disc Brake Pad - Organic Compound For Code and GuideSwissStop RS 29 Disc Brake Pad Organic Compound For Code and Guide. The SwissStop Disc RS brake pad set offers a highly balanced combination of brake performance durability and incredibly low noise in all conditions. Delivers a smooth feel in the brake lever with predictable and progressive brake power Provides extremely quiet operation in all environments Features an organic compound that offers smooth modulation and is rotor friendly At 1. 6mm thick