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Quarq Elsa Powermeter Crankset BB30 - 53/39
At 735g, the Quarq Elsa GXP BB30 full sized power meter crankset is two great tastes that go great together: Quarq's unmatched power meter system, and SRAM's Exogram Hollow crank arms (a la SRAM Red) which features SRAM's hollow cross section construction that extends all the way to the spider, making this the lightest, stiffest SRAM to hit the market. You'll also find SRAM Red Powerglide chainrings on this full sized 53/39t crankset. So you get a pro-level crank with an ANT+ wireless system boasting an expressed accuracy of +/- 1.5% , and Quarq's new Power Balance feature that measures the power from individual left and right pedal strokes.
SRAM Red carbon hollow Exogram arms are ultra stiff and light