SRAM RED Crank Arm Assembly E1

What is the SRAM RED Crank Arm Assembly E1?The SRAM RED Crank Arm Assembly E1 is a replacement or upgrade crank arm set for SRAM RED E1 road cranksets. It uses the DUB spindle standard and is compatible with RED E1 power meter spiders and direct-mount chainrings. The crank arms use RED-level finishing and materials, the same spec found on RED E1 complete cranksets. This assembly allows riders to replace damaged arms, change crank lengths, or build a RED-tier crankset around an existing spider or power meter unit. Confirm your crank arm length requirement and RED E1 compatibility before ordering. The spider and chainrings are not included in this assembly. This is the crank arms and spindle only.