Mrp 1x v3 upper chain guide carbonthe 1x guide is the perfect addition to your drivetrain if you need extra chain retention if your chain drops off the chain ring often or if you would simply like some extra confidence that this will never happen this v3 guide is available for d mount and iscg 05 mountingfeaturessuited to trail cross country and cyclocross ridingadds chainline security to narrowwide 1x1011 and xx1x01 drivetrainstracked and grooved upper guide backplate interface incre