Felix Prangenburg wanted his signature sprocket to be a little more unique than normal, it's thicker than any other WTP sprocket and stands up to even the most savage of riders. The sprocket guard for the Pathfinder was always intended to be a replaceable part, its nylon construction reduces friction and doesn't snag when it comes into contact with surfaces you're grinding. But when it does go you can easily replace it and keep on riding. ###section### Product Specs TYPE: Bolt On MATERIAL: Nylon WEIGHT: 104g (3.72oz) Colour: Black; Size: 25T, 28T