Sram gx 1400 11 speed chainset gxpthe sram gx crankset delivers consistent performance every time out featuring srams x glide chainrings the gx crankset is engineered for exact actuation shifting performance when paired with our wide range 10 42 cassette and the gx rear derailleur gx drivetrain is one of the most stable ever createdto fabricate our open core technology a single mass of premium alloy is pushed pulled and squeezed into a hollow crank arm during our exclusive process the m