SRAM RED D1 DUB CRANKSETLIGHTWEIGHT AND STIFFWhether you're racing criteriums or triathlons, you want the lightest and stiffest components possible on your ride so you have the advantage. The SRAM Red D1 DUB Crankset leverages a pivotal design innovation which is to have smaller chainrings and a wider cassette range. It features X-Range gearing technology that gives riders more range and a smoother gear progression and an improved front shifting performance for crisp and accurate front shifts. The unique chainring design on the crankset delivers a lighter, stiffer, and more durable crankest. On top of all this, you can upgrade it to a power meter. Features Unique chainring design delivers a lighter, stiffer, and more durable crankset X-Range gearing technology gives you more range and a smoother gear progression Can be upgraded to a power meter so you can get the most out of your training Improved front shifting performance for crisp and accurate front shifts SPECIFICATIONSSpeeds12BB Compatibility SRAM DUBChain Ring46/33T, 48/35T, 50/37TCrank Arm Length170, 172. 5, 175mm BB Spindle Interface DUBChainring Material Aluminum Bolt Center Diameter (BCD)Direct Mount Crank Arm Material Carbon Fiber Chainline45. 0mm Bottom Bracket Included No Intended Use Road, Racing, Triathlon Weight- | Sram | Red | Axs 2X Dub Crankset, D1 Crankset | Red | D1 Dub, 175Mm, 48-35T