This mountain bike chain guide is designed to improve chain retention on rides that push your drivetrain. It offers reliable performance without adding unnecessary complexity. Key benefits - Prevents chain dropping and chain cracking on one-piece sprockets, helping maintain control on rugged terrain. - Built to resist wear and deformation, lasting through demanding cycling conditions. - Lightweight yet durable construction provides long-term reliability in a variety of trail settings. What it is - A high quality chain guide for mountain bikes, engineered to keep the chain aligned and engaged with the sprockets. Material and build - Made from high-strength aluminum alloy. - Material has been heat treated and CNC machined for precision and durability. - Designed to be lightweight without sacrificing strength or longevity. Compatibility and installation - Suitable for threaded bottom bracket (BB) systems. - Not supported for press-in bottom brackets. - Installation requires disassembly of the bottom bracket and cranks. How it solves common problems - Addresses chain drop risk on rough or technical terrain, reducing the chance of losing drivetrain control. - Helps prevent chain derailment and potential chain damage during aggressive riding. Use scenarios - Riding mountain bike trails with one-piece sprockets where chain retention is a priority. - Upgrading a bike with a threaded BB bottom bracket to improve chain stability during aggressive climbs or downhills. - Use on rugged, technical routes where the chain may be stressed by shifting under load. Notes - Ensure compatibility with your bike’s threaded BB system and that installation procedures are followed, including removal of the bottom bracket and cranks as required.