It is the ultimate high speed , heavyweight sport bike chain. Rated up to 1400cc street bikes and has a tensile strength rated at 10,000 foot lbs. It has a wear life index of 1,000, ten times longer than standard chain. It is suitable for use on the Suzuki Hayabusa. The "XW-ring" is made of an advanced Nitrile Butadiene composite and features three contact lips and two convex outer stabilizers. This means three lubrication pools to protect against high speed abrasion, extreme heat build up, torsional flex and loss of lubricant. Nitrile Butadiene composite is oil and contaminant resistant, and the "XW" seal design is compression and distortion resistant to provide the ultimate in efficiency and performance with absolutely no O-ring drag. The "XW-ring" provides the user with a 50 percent longer wear life than basic O-ring chains. Pin Length in mm: 24.9mm. Maximum Wear Life Index: 1000. Maximum Tensile in pounds/feet: 10000pounds/feet. Master link Type: Rivet. Weight in pounds per 100 Links: 4.63lbs. Max cc: 1400cc Street/900cc Off-Road. 19.2 Links per foot. 15.875mm Pin to Pin center. Your original purchase of RK sealed-ring chain is warranted to be free of defects in material and workmanship for 20,000 miles of street riding or one-year of off-road use. There is absolutely no warranty of any kind for an RK Chain used in ANY racing competition.