e*thirteen by The Hive TRS Chain Guide 28-38t with Compact Slider and Bash Guard, BlackThe e*thirteen TRS Chainguide is designed to take extreme punishment, without punishing your wallet, offering full drivetrain protection (upper slider and bashguard) and a durable steel backplate. A modular assembly allows riders to choose from one of three sizes of bash guards (28 36t included). All polycarbonate parts are solvent resistant, and our tool free compact upper slider is co molded to cut down on noise. Durable steel backplate Color: Black