SPECIFICATIONS Frame: Aluminium Fork: 4130 steel Motor: Bafang M400 250w, 80Nm Torque Stand: Steel Stem: Adjustable Wheels: 27.5inch/650B rear, 24 inch or 20 inch front Tyres: up to 2.1 Groupset: Shimano SLX 11 Speed (other options available on request) Brakes: Hydraulic Shimano, 203mm front disc. 203mm rear disc Overall length: 2500mm (Courier) 2870mm (Family) Overall Width: 485mm (550mm with box) Wheelbase: Courier 1880, Family 2250 Weight complete bike Courier: 25kg without box Family: 28kg without box (all weights and sizes are approximate and dependent on full specification)