RFN Warrior SX E400 Electric Bike Blue Red 18" adjustable Frame Aluminium alloy with adjustable Frame Aluminium alloy with swingarm Front Suspension Suspension forks with 80mm travel Rear Suspension 140psi air shock with 30mm travel Brakes Hydraulic discs with adjustable reach levers Wheels Tyres 18 inch spoked rims knobbly tyres Maximum Rider Weight 50kg Throttle Full twist with battery level display Carton Size 123 × 67 × 27cm Warranty 6 months you may want to upgrade to a fast charger (compatible models only) The lower seat height helps smaller riders feel more secure when stopping magnetic kill switch and smooth controller make it much more parent friendly than simply giving a young rider too much bike too early