Designed to handle the extreme demands of offroad, Supermoto or serious dual-sporting, the RXO slim chain is the perfect chain for all your racing needs. Lightening holes on sideplates reduce weight and aid in self cleaning and heat dissipation. The Quadra X-ring reduces friction by as much as 40% and last as much as 50% longer than standard O-ring chains. EK"s Zero Stretch Technology (ZST)on the RXO/SM eliminates measurable chain stretch during the first 600 miles of use, putting an end to the hassle of constant chain adjustments after the initial break-in period, when most chain stretch occurs. Color: Gold Tensile strength: 8,630lbs.