Givi V47N 47 liter Monokey Motorcycle Top Case Matte Black Top Case with Silver Trim, Red Lenses and Silver Aluminum Top Panel 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)