When Avid began developing XX, they were looking to create the lightest, most precise and technically advanced components possible, and boy have they delivered! The XX World Cup Hydraulic Disc Brake offers superb modulation and heaps of power in a feathery light package. Every detail of this beauty, from the carbon lever to the forged magnesium caliper and titanium bolts, has been intricately designed to enhance control out on the trail. What's more, it comes complete with Avid's HSX rotor and organic pads that turn once formidable trail obstacles into small speed bumps. And, you can adjust the lever reach on the XX for a perfect fit and maximum power.