Bike touring bike type men wheel size 28 inch model 2017 series cube touring 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 rim brakes bicycle fork suspension fork fork suntour nex wheel travel 63 mm rear derailleur shimano tourney number of gears 24 gear system with derailleur groupset shimano front deraill