Lightweight Aluminum Construction: Crafted from aluminum, the SRAM Rival Crank Arm Assembly offers an optimal balance of stiffness and weight, enhancing power transfer and reducing fatigue on long rides. Advanced DUB Spindle Technology: Features the innovative DUB bottom bracket interface for increased durability, simplified installation, and seamless compatibility with SRAM DUB cranksets and bottom brackets. Versatile 12/13-Speed Compatibility: Designed for both 12 and 13-speed mountain bike drivetrains, enabling smooth, precise shifting performance across a wide gear range for mountain biking and gravel riding. 8-Bolt Direct Mount Interface: Equipped with an industry-standard 8-bolt pattern for secure, customizable chainring attachment, compatible with power and non-power AXS spiders and integrated chainrings (sold separately). Stylish and Durable Black Finish: Finished in corrosion-resistant black, this crank arm assembly combines sleek aesthetics with long-lasting performance, making it suitable for aggressive trail riding, endurance events, and everyday cycling. Upgrade your road cycling performance with the SRAM Rival Crank Arm Assembly - a perfect blend of lightweight engineering, durability, and precision. Designed for cycling enthusiasts seeking reliable power transfer and optimized ride quality, this 165mm crank arm is engineered for 12 and 13-speed drivetrain compatibility, making it an ideal choice for modern road bikes. Materials & Construction Constructed from high-grade aluminum, SRAM has carefully engineered these crank arms to deliver an exceptional stiffness-to-weight ratio. Material is strategically placed only where needed, reducing weight without compromising strength or durability. The sleek black finish not only enhances style but also provides resistance to corrosion and wear, ensuring longevity on every ride. Performance & Engineering The SRAM Rival 165mm crank arms are optimized for high-performance road cycling. The DUB spindle interface (9/16" pedal compatibility) ensures universal pedal compatibility and smooth power transfer. The crankset is compatible with SRAM's DUB bottom brackets (sold separately), offering enhanced durability and simplified maintenance. This assembly is designed for use with 12- and 13-speed drivetrain systems, supporting precise shifting and efficient power delivery. Components & Technology Featuring an 8-bolt direct mount interface, these crank arms are compatible with SRAM's power and non-power AXS spiders or integrated chainrings (sold separately). The direct mount SRAM 8-bolt pattern ensures a secure fit and quick installation, allowing for customization with compatible chainrings to suit your riding style and terrain. Designed for road disc hubs with 135/142mm spacing and chainstay lengths under 415mm, this crankset ensures optimal chainline alignment and seamless performance. Style & Use Case Sporting a sleek black aesthetic, the SRAM Rival Crank Arm Assembly complements any high-end road bike setup. Whether you're racing, training, or long-distance touring, these crank