Hope lightweight bash guardhope lightweight bash guard hopes newaluminium bash ringtakes the place of the large chainring on single or double ring set ups ideal for the new breed of 1 x 10 or 2 x 10 drivetrains aluminiumchain devices fit in various places around a mountain bikes transmission and help to eliminate chain suck and chain slap when riding over rough terrain or landing from big drops there are a number of fitments some frames have iscg mounts which are lugs on the drive side o