Nukeproof chain guide iscg 05 top guidedesigned by the nukeproof engineers for performance, this top guide ensures that you don't drop your chain when out on the mtb trails. It features a hard wearing alloy backplate with a composite top guide. This makes it more than capable of withstanding all the knocks and jolts as you blast across the mountain. Nukeproof has also equipped this trail ready top guide with a soft rubber co moulded into it. This also reduces wear and noise from your chain and increases its longevity. This guide fits all bikes with an iscg 05 mount and comes with various washers allowing you to fine tune your chainline setup.click here to view and download instructions.click here for a step by step installation guidefeatures backplate material alloy hardware material stainless steel use mtb compatibility 28 36t chainrings, boost and oval weight 45g guide, 2x bolts 2x 3mm washers manufacturer part numbers copper npchaguitg black npchaguitgblk blue npchaguitgblu grey npchaguitggry purple npchaguitgpur red npchaguitgred buy nukeproof components from chain reaction cycles, the world's largest online bike store.