Best-in-class 1x range that allows you to ride anywhere, this XG-1275,10-50-tooth Eagle cassette FULL PINtechnology uses lightweight, stamped steel cogs held together with high-strength stainless steel pins. The result: a cassette that's light and strong. The open design—similar to our X-DOME cassette—aids in mud clearance, giving you cleaner shifting performance and longer component life New X-GLIDE2 teeth features mate perfectly with Eagle chains to improve both inboard and outboard shifting, as well as chain retention.Key Features:Extremely durable and lightweight cassette that Incorporates FULL PIN technology using eleven lightweight stamped steel cogs and one 50-tooth aluminium cog held together with high-strength stainless steel pinsPerfect range for any ride With our 10-50T[500 percent] gearingSmooth, comment and optimized gear steps across entire range of cassetteThe XG-1275 Eagle cassette not only offers a massive 500~percent gear range for lower low gears and higher high gears. but also the ability for advanced level riders to ride larger chainrings for a smoother overall pedaling feel