More adjustability. Better retention. After two decades of being the most-used chainguide on the World Cup Downhill circuit, e*thirteen guides are trusted by the world's top riders. Constantly searching for ways to improve the rider experience, we designed the Vario Chainguide with user preference and choice in mind, allowing riders to customize the guide according to their needs. The Trail version is a minimal, lightweight option with a 2-bolt mount upper backplate, and an ultra-compact upper slider. It's perfect for your downcountry or traditional trail escapades. Most appropriate for hardtails to 140mm lightweight full suspension bikes. Features: - Adjustable upper slider: The Vario compact slider offers infinite lateral adjustment to cater to different chainlines, using a simple single-bolt mechanism. - Versatility in mounting: The armature can be fixed inside or outside the guide backplate to better suit various bike setups. - Choice in coverage: Riders can choose between a longer, full-coverage slider and a shorter, ultra-compact slider. - Chainline: Boost, SuperBoost