Shad SH47 Top CasePark your bike then store your helmet and jacket in the rugged and practical Shad SH47Top Case. The SH47includes a quick release universal mounting plate that can bolt up to most existing luggage racks. Don't have a luggage rack? Search "Shad Top Case Racks" for a bike specific mounting option.Features: Thermoplastic construction Press lock quick release system Universal mounting plate included (adapts to existing luggage racks) Holds twofull face helmets 22.4" W x 12.2" H x 16.5" D 47liters 13 lb weight capacity Optional brake light kit offers increased visibility by adding an additional brake light in a higher, more prominent location Optional passenger backrest OptionalShad X0IB10 Inner Soft Bag for SH45-SH59X Top Cases(sold separately) allows you to leave the case behind and tote around your gear in a lightweight soft bag;toss it back in your top case then take off Note: Bike specific Shad top caseluggage racks sold separately.