Sram XG-1290 Red eTap AXS

greatest possible weight savings through its one-piece design. It is an integral part of SRAM's breakthrough Deep Range technology, which offers key advantages with a wider ratio range and tighter gearing.DEEP RANGER road bikes and their riders are faster and more powerful than ever before. But the gearing of our bikes hasn't kept pace with this change. It has been constrained by tradition. With the sole goal of improving the modern road riding experience, SRAM has completely redesigned road bike gearing with Deep Range technology.Not only does it offer more gear range, but it uses that range more efficiently. It has "depth": a smoother, more efficient gear graduation. Intelligent shift settings, made possible by AXS, bring the simplicity of a 1-speed drivetrain to 2-speed. So you always have the right gear and the gearing doesn't get in the way. Faster, more efficient and more enjoyable driving with Deep Range technology.X-DomeThrough the X-DOME technology creates an incredibly light, precise and robust cassette. The open design repels dirt better, giving you smoother shifting performance and longer component life.X-GlideImagine being able to shift whenever you want, regardless of external conditions. And we're talking full-force shifting here. The advantage of the X-Glide drivetrain is obvious, but upon reflection, it has an immense impact on your riding experience. SRAM's crank engineers have developed a new chainring geometry from the ground up. They have precisely matched the different sized chainrings and revised the places where the chain and chainring meet. By adapting the teeth of the chainring to the joint pins of the chain you get twice as many switching possibilities.XDRThe XDR drive body is a universal mounting system for cassettes that have sprockets with less than 11 teeth. It allows for lighter and more versatile drives without the need for new axle standards, hub conversions or even new cassette tools. The XDR interface is 1.85mm longer than XD and is designed for road hub applications. XDR drive bodies are compatible with all XD cassettes when the cassette is installed with a 1.85mm spacer behind it. - Details: - Updated design for smoother and faster shifting - Pleasant gear graduation between the cassette pinions - at least five jumps with only one tooth each - and yet a wider ratio range - The 10er pinion allows a wider ratio range - Designed for XDR freewheel bodies - X-Dome design of one-piece machined steel for weight savings - All Zipp wheels from 2012 are XDR compatible - Type: Cassette - Material type: steel - Purpose: derailleur cassette - Gear ratio cassette (teeth): 10 teeth - 26 teeth - Type: cassette - Number of gears: 12 - Compatibility: Sram.