Hxr components iscg 05 chainguidethe hxr components iscg 05 chainguide has a tough 7075 t6 aluminium construction that can stand up to the rigors of the roughest trails compatible with a wide range of chainring tooth options this reliable performer will to ensure your chain stays where its meant to be so you can just get on with winningfeatures material 7075 t6 aluminium black anodized and laser engraved iscg 05 standard compatible tooth range 28 34t protective bash screws and spacers in