The MTB Mountain Pad is a top choice for mountain bike direct pull brakes. The curved design allows this longer more rigid pad to contour the rim for better brake performance. Features: Hardened and Plated reinforced steel backbone Patented Angled tip plow Water grooves Knurl-lock™ washer system Available in Threaded and 2024 Aluminum Smooth Post Rim Friendly Compounds Threaded Specifications: Weight per pair: 61.9 grams Overall length: 78.5 mm Pad contact width: 8.5 mm Black - Koolstops' standard compound which is great for all weather conditions, but designed for dry condition riding. Salmon -The famous Salmon compound is also one of Koolstops' most aggressive compounds for extreme all weather conditions especially in the wet, but still superb in the dry.