The SRAM Rival AXS E1 Crankarm Assembly redefines aluminum performance, delivering an exceptional balance of stiffness, strength, and lightweight design. Through careful engineering, material is placed only where necessary to optimize the stiffness-to-weight ratio, creating a crankset that delivers efficient power transfer without unnecessary bulk. The aluminum arms are robust yet lightweight, finished in a sleek black color for a clean, modern look. Featuring a versatile 8-bolt interface, the Rival AXS crankarms are compatible with both power and non-power AXS spiders as well as integrated chainrings, making them ideal for riders looking to fine-tune their drivetrain performance across road, gravel, or endurance setups.

Built around SRAM’s proven DUB spindle platform, the Rival AXS E1 crankarm assembly offers maximum durability, simplified compatibility, and improved bearing longevity. It fits all SRAM Road DUB bottom brackets and Road Wide DUB bottom brackets, with chainlines of 44.7mm or 47.5mm depending on the application. Available in a wide range of crankarm lengths from 160mm to 175mm, riders of all sizes can achieve an ideal fit for optimal pedaling efficiency. Designed for 12- and 13-speed drivetrains and featuring a direct-mount interface, the Rival AXS crankarm assembly provides a reliable, modern foundation for building a high-performance, electronic shifting system. Whether upgrading or building a new AXS-equipped bike, the Rival AXS crankarms offer premium performance at an accessible level.