Sram: INVINCIBLE The X01® DH crankset with X-SYNC™ technology is engineered for ultimate DH performance in the most aggressive terrain. The carbon crank combines stiffness and strength with lightest-in-class weight of under 800 grams. Proven in World Cup and World Championship racing, it’s the crankset made for relentless downhill rides.FEATURESCarbon DH racing crankCNC machined 7075, two-tone anodized X-SYNC™ chainring, 94 BCD —an integral component of the SRAM 1x™ drivetrainX-SYNC™ technology compatible with SRAM 1x™ 7- and 10-speed DH drivetrainsX-SYNC™ tall, square tooth design provides maximum chain controlSharp, narrow tooth profile and rounded chamfer edges help manage a deflected chainMud-clearing recesses for the inner chain links and rollersLightest in class carbon constructionHigh strength alloy pedal lugISO 4210 compliant. See Declaration of Conformity for details. SPECIFICATIONSSpeeds: 10/11BB Compatibility: DUB BSA MTB83, DUB PF MTB104.5/107Chainring Size: 34Crank arm length: 165mm, 170mmChainline: 56.5mmBB Spindle Interface: DUBChainring material: AluminumGuard: No GuardBolt Circle Diameter (BCD):  Direct Mount (DM)Crank arm material: CarbonColor (Crank arm): Black, Red