About SRAM Red AXS 12 Speed ChainThe all-new SRAM RED chain was redeveloped from the ground up. The unique link shape allows the chain to be narrower and lighter while increasing strength and providing more space between the outer plates of the chain and the cogs on either side. Result: a quieter chain with faster, more precise shifts. FeaturesFlattop technology enables a narrower chain with quieter operation and increased strength and durability Hard Chrome plated inner link plates and rollers for reduced wear and prolonged life HollowPin construction for increased strength and efficiency Requires new Flattop Powerlock TechnologyPowerLock: SRAM chain engineers developed PowerLock as a tool free, sure, and consistent way to connect our chains. While PL does not require special tools for install, the especially tight tolerances of 10, 11 and 12 speed drivetrains mandate that each PowerLock is good for a one-time application only. FlatTop: To enable X-Range gearing technology, SRAM developed a narrower chain. The unique link shape of Flattop technology not only allowed for a wider gear range, but also results in quieter drivetrain operation and increased chain strength and durability. X-Range: Road bikes are faster and more capable than ever before, and riders are expanding what’s possible with drop bar bikes. X-Range is gearing for today’s road riding. SRAM completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings—enabled by AXS. With X-Range, you’re always in the right gear. SpecificationsCompatible Speeds: 12 Speed - Road Outer Link Finish: Nickel Colour Outer Link: Silver Inner Link Finish: Chrome Plated Colour Inner Link: Silver Chain Connector: PowerLock D1 Chain Length (links): 114 links Pin Variant: Hollow Pin About SRAMFounded in 1987, SRAM (an acronym of the 3 founders names, Scott, Ray and Sam) is a privately owned bicycle component manufacturer located in Chicago. They're known for developing many of the inovative technologies used in bikes today including ETAP wireless electric shifting, Grip Shift, dedicated single chain ring drivetrains, narrow wide chainrings and more. Sram also own bicycle component brands Rockshox, Quarq, Zipp and Truvativ.