crankset quarq red e1The Quarq SRAM RED E1 Crankset is a premium crankset with a built in power meter, designed for professional cyclists and ambitious enthusiasts. It's the lightest, stiffest, and most accurate crank and chainring combination in the SRAM lineup. A new carbon crank arm design further reduces weight by 29g compared to the previous generation. The integrated power meter delivers precise readings with an accuracy of 1. 5% , regardless of weather conditions,