. . .plastic (poly-whatever-thane). It seems like the plastic slides better over rocks/roots. It seems like strength and durability would be an issue but the plastic is surprisingly strong. Three years later and I'm still running the same e-thirteen although it serves more as a guide than protection - after all this time there are only a few knicks and scratches.
A forum community dedicated to Mountain Bike owners and enthusiasts. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, trails, troubleshooting, maintenance, and more!