In no way is Avid new to the multi-piston game. But, unlike the X0 Trail Brake, its prior offerings were solely intended for gravity use, and sadly, could easily double as boat anchors. Lucky for the all-mountain and enduro set, Avid didn't just go digging into its extensive parts bin to pair an X0 master cylinder to Code calipers. Instead, what you get is a completely new four piston caliper that won't weigh down your rig. The resulting two-piece caliper houses 16mm and 14mm pistons. This combination provides the perfect balance of modulation vs. power, which allows a controlled speed scrub to full-on, eyeball elongating power. The minimalist caliper uses a post-mount, and the line is connected via an adjustable banjo bolt on the back. This allows a clean installation on a variety of frames, including the current trend towards chainstay mounts. At the levers, Avid took the time to beef things up from the standard X0 offering. Instead of a hollow pivot rotating on a bushing, the X0 Trail's lever rides on dual sealed bearings. This adds strength and long-lasting, smooth action to the picture. Avid's Taperbore technology is employed here, but it features all new internals like a relocated, easy-to-access bleed port and an air trap to automatically isolate any tiny bubbles from the system. The X0 Trail's master cylinder has lever reach and pad contact adjustment to accommodate individual rider preferences, and the clamp is matchmaker-compatible for plenty of handlebar/shifter/remote mounting options. Connecting the caliper and lever is a high-strength, braided polyester hose that ensures lever input isn't lost to expansion. The Avid X0 Trail Brake is available in the colors Black Anodized and Polished Silver. Please note that these brakes are sold individually as either a front (950mm hose) or a rear (1800mm hose).