Origin: The SL traces is heritage to our 200SL road brake, which established itself as a staple of road bikes on a weight purging diet. By switching from conventional dual pivot brakes to a pair of 200SLs, road riders could knock off at least 70 gramsenough of a savings to be a performance upgrade in its own right. The SL advances the performance edge even further. The original 200SLs weighed a svelte 125g per caliper but the new SL adds the superior performance of a dual pivot with only a 7g increase in weight. Thats proven performance that you cant pass up. Construction: The SL's Dual Pivot design musters plenty of stopping power and precise control, because we've optimized all the ingredients. The brake arms start out strong as cold forged aluminum and are CNC machined to relieve weight without sacrificing integrity. Titanium hardware provides the other main source of gram reduction, bringing the SLs in at a world beating 264 grams a pair. The adjustable spring tension helps provide a light yet powerful feel while the Kool Stop Cartridge brake pads assure the rider of precise control in all conditions. Who rides it: SL brakes have been proven in competition by pro road teams and top triathletes, including a few Ironman champions. It's a natural upgrade for weight freaks and a justifiable one for just about anyone.