Meet the 5DEV R-Spec E-Bike Crankset - tuned for modern light and trail e-MTBs. Built brutally stiff, deceptively light, and smarter by design, it delivers lively acceleration with the durability to ride hard, day after day. Precision-CNC&';d from 7075 aluminum for elite stiffness-to-weight, the R-Spec eBike crank uses an optimized cutout design to put material where it matters and remove it where it doesn&';t. The result is a crisp, responsive pedal feel that holds firm under assist torque without dragging you down with extra grams. Designed for use with Fazua R60 ETOR interface Steel crank bolt 8mm Hex and billet aluminum self-extractor 16mm hex Durable 7075-T651 Aerospace Aluminum Billet machining offers strong, stiff, and light weight for nimble e-handling The R-Spec uses an optimized cutout design to put material where it matters and remove it where it doesn t, resulting in a crisp, responsive pedal feel that holds firm under assist torque without dragging you down with extra grams Designed with an optimized shape and length that features low-profile arms and smooth edges for ergonomics and fewer pedal strikes Reduced material around pedal boss for added ground clearance Item Specifications BB Included No Chainrings Included No Color Black Crank Intended Use Mountain Crank Length (mm) 165 Defined Color Black Designed for ebike Yes Pedal Spindle 9/16" Spindle Diameter Not Included Weight 440 5DEV R-SPEC eBike Crankset eBike Crankset UPC: 850054022349