5DEV Crank Spindles - precision made for perfect fit and power. CNC-machined premium 7075 aluminum and hard-anodized, these spindles deliver rock-solid stiffness, low weight, and exact tolerances for smooth bearing interfaces and silent running. Multiple lengths let you dial Q-factor and chainline to your frame, drivetrain, and riding style. Compatible with SRAM DUB 28.99 and 5DEV 29mm bottom brackets Designed to achieve 56.5mm SuperBoost+ chainline / 73mm shell ONLY compatible with 5DEV cranks Precision-machined for optimal stiffness-to-weight and durability Hard-anodized surfaces for wear and corrosion resistance Easy swaps for setup changes or frame moves Item Specifications Color Blue 5DEV Crank Spindles Crank Part UPC: 850054022066