Givi V47NNT Tech 47 liter Monokey Motorcycle Top Case Black Matte Black Top Case with Silver Trim, Smoked Grey Lenses and Faux Carbon Fiber Top Panel The V47 case has a 47 liter capacity and can hold two full face helmets. The dimensions of this case is: 23.2" x 17.7" x 12.6" Requires Bike Specific or Universal Monokey Mounting plate to install (sold separately)