MRP SXg Carbon MTB Chain GuideThe SXg is a low profile chainguide, which is unlikely to come into contact with objects that you ride over. Should this happen to be the case, the SXg has a lower bash guard that will protect your chainring if contact with trail objects were to occur.Features:Suited to Downhill, Enduro and Trail ridingPassive Retention ensures the guide does not make contact with the chain unless neededFull-size, nylon HD upper guide with co-moldingAll install and adjustment operations are possible with just a single 4mm HEX wrenchWhippersnapper lower guideISCG-05 onlyCompatible with a 50mm chainline and wider (is also Boost 148 compatible)Integrated SX skid provides safeguard to the chainring and glides over rocks and obstaclesBuy MRP Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.