High performance road bike or mountain bike chain, part of Shimano's top level Dura-Ace / XTR range. Super narrow lightweight 11-speed HG-EV symmetrical design chain for smooth shifts and maximum durability. Sil-Tec surface treatment technology (PTFE plating) on inner and outer links and rollers that is smooth running and increases durability Comes as a 116 link length (can be shortened using a chain breaker) Genuine, brand new, boxed Shimano product - Biketart are an official UK Shimano stockist. Suitable for 11 speed road, gravel and mountain bikes Outer plate design has been developed to reduce the chance of chain suck Zinc-Alloy plated inner and outer links Hollow pin for added weight saving The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running 5.62 mm chain width, optimised for 11-speed Super Narrow HG-EV drivetrains Comes complete with Quick Link which enables fast tool free chain assembly Approximate weight - 243 grams