The Roma LR4 frame is a 4″ frame designed for long range cruising. Specifications Wheelbase ：176mmSEO Weight ：47g Prop Size ：4inch FC Mounting: 20×20/26.5×26.5m（M2） Motor Mounting: 9mm/12mm Camera Spacing: 20mm Top Plate: 1.5mm Medium Plate: 1.5mm Bottom Plate: 1.5mm Arm: 3mm Aluminium alloy：7075 Carbon fibre: T300 3K Click here for a detailed assembly guide. In the box 1 x Roma LR4 frame is a 4″ frame Kit
