SRAM RED 12S Crankset DUB 46-33 172mm

With the release of Red eTap AXS 12-speed, SRAM brings us the Red AXS DUB Cransket 2x12, a wonder of design and engineering that not only maximizes impeccable machining, but also optimizes the 12x2 drivetrain and X-Range cassette gearing with 10T small cogs. The chainring combinations are unfamiliar but a quick look at a gearing chart is all you need to understand the large and small ring tooth count options.

For most cyclists, a crankset starts with the arms, which feature Carbon Tuned construction which ensures super lightweight and strong structure, with variable wall thicknesses and internal lattice that allow for the weight and strength combination that elicits indelible arm stiffness and power transfer. That arm affixes to the 28.99mm universal hollow DUB spindle, now brought to road cranksets. The two arms and DUB spindle create an exceedingly stiff interface that pushes weight boundaries for large-scale production bike components. Of course all that is very interesting and impressive, but not the headline story of the Red AXS DUB Crankset, that belongs to the single-piece, machined double ring unit.

This undeniably impressive technical accomplishment, this unique chainring design, combines with the carbon arms and DUB spindle to result in a the ultimate lighter weight, stiffer, more durable crankset. SRAM's road tooth structure and unified ring system form the front end of the X-Range gearing system. To simply look at the machining and minute details can keep one transfixed until the desire to use it overcomes the amazement. As paved and unpaved roads continue to expand drop bar bicycle riding possibilities, SRAM identified the need for new gearing options. The 2x12 drivetrain delivers. The engineers completely reconsidered gearing range, smoother progressions through the shift range, with smarter eTap shift settings, as delivered by the AXS (think- Access) wireless communication system. eTap AXS 12-speed delivers faster, more precise shifts, which come from a combination of the ring and profiling system, eTap AXS itself, and improved understanding and application of shifting gates from both the rings and cassette.