Gamuts latest chainguide solution the gamut p30 dual ring chain guide and bashguard is designed to accommodate 2 ring set ups with the protection of the p30 bashguard the guide comes in all possible mount types iscg iscg05 bb mount and does not require the use of adapters cncd 6061 aluminium is the material of choice which makes weights range from 146g to 154g including bashguard perfect for any trail downhill or xc bike designed machined and assembled in san jose california by mi