Sram Red XG-1090 10V Cassette

Ins and outs

Once again, SRAM pushes the boundaries with its 10-speed Powerdome X XG-1090 cassette. Light, stiff, fast and quiet thanks to the ultra-durable, hollow and one-piece design and StealthRing elastomers, this cassette is worthy of even the most beautiful road bikes. SRAM added elastomer rings between each sprocket to create a "base" where the chain plates interface with the sprocket. These elastomer StealthRing rings ensure quiet operation. It's also lightweight, with the small 11-tooth sprocket separate and the remaining 9 sprockets milled from a solid block of tool steel pressed onto a single aluminum sprocket (the largest). And, to further reduce weight, excess material in the space between each sprocket is milled away.