The X9 2x10 front derailleur has been completely re-designed to operate specifically with SRAM 10 2x10 drivetrains. The outer cage profile and shortened throw is perfect for a 2 ring double crankset. oversize and super stiff bracket combined with a strong return spring manipulate the chain up and down the chainrings with ease. The X9 has a black anodized body with a treated cage for added durability.
The SRAM Low Clamp design is a variation of the traditional clamp style with the difference being the cage swings above the clamp as opposed to below it. Hence the term low clamp, where the clamp is lower than the cage. It offers a stiffer option to the high clamp however it will not fit some frames that have ovalized tubes by the seatube/bottom bracket shell juncture.