Description : SRAM X0 2x10 42/28 Crankset. A full gear range with fewer gears--that's the beauty of SRAM's revolutionary 2x10 system. You get unmatched shifting performance and a lighter, faster, more responsive bike. SRAM's new X0 2 x 10 crankset utilizes Threshold Technology carbon layup to create crankarms that are strong enough for downhilling, yet light enough to satisfy even the most weight-conscious XC racer. Chainrings feature two sets of pins to aid in big ring pickup for quick and precise upshifts.