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 For use with Fat Bike 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 Brown 5DEV Crank Spindles Crank Part UPC: 850054022110