The KMC X11 Super Light Chain is the world's lightest 11-speed chain, it weighs a mere 243 grams. KMC have used their X-Bridge outer plate and a non directional design to offer exceptional durability and versatility. The chain's life has also been prolonged with StretchProof treatment added to reduce wear between the inner plate and pins. Triple X Durability means the chain will last longer than rival manufacturer's offerings. KMC X11 Super Light Chain Features 11-speed 118 Links Ti Nitrate plated Light, only 239 grams Double X Durability