Hybrid sport bike type men wheel size 28 inch model 2017 series cube nature frame material aluminium frame characteristics double butted frame geometry diamond bike frame sizes cm 46 50 54 58 62 cm frame sizes xl s l m colour black braking system disc brake brakes shimano 315 brake disc diameter frontrear 160160 bicycle fork suspension fork fork suntour nex suspension fork feature hydraulic lockout wheel travel 63 mm rear deraille