Many of us around the office shudder at the words "bottom bracket standards." This simple phrase elicits a sense of worry as we hypothesize about what new contraption will come forward with proprietary spindles, shells, and bearings. Fortunately for us, the release of DUB technology found in TruVativ's Descendant 6K Eagle DUB Crankset eases that anxiety. This chain-locking crankset combines SRAM's X-SYNC 2 tooth profile that commands control, with SRAM's DUB technology that future-proof's your crankset by standardizing spindle sizes, and offering a pairing bottom bracket that fits all current standards. 6000-series forged aluminum construction maximizes caters to discerning trail riders and enduro racers seeking stiffness and strength without the higher cost of its carbon crank brethren. Choose between 170 and 175-millimeter crank arm lengths, depending on your riding preferences and intended usage on the trail. It's compatible with SRAM DUB bottom brackets for any shell standard, and works exclusively with 142mm non-Boost spacing. The 32-tooth direct-mount Eagle chainring must be paired with a SRAM Eagle chain and cassette, and its spindle must be paired with a DUB bottom bracket of your choice.