Brand new V3 1x guide.CarbonHigh direct mountNew Co-mold rubber upper guide for truly silent running26-38T CompatiblityBlack 36 grams.You may just be the type of rider that should be using some sort of chain guide. Some people, especially those who are pushing hard and going fast over rough terrain, are just always going to need some sort of chain guide. - Mike Levy, Pinkbike 2015.