The ultimate in lightweight race day chain retention straight from the World Cup circuit!Featuring a carbon fiber backplate, the LG1r chainguide provides e*thirteen’s legendary chain retention in our lightest package ever.Kills noise dead with the soft-n-silent Gen2 Stealth idler, and our new co-molded upper slider.A modular assembly allows riders to choose from one of three sizes of bash guards (included) and remove the lower slider completely as the course dictates.All polycarbonate parts are now solvent resistant, so they wont get brittle or crack after exposure to lubes and cleaners.