The Pillion Pooch needs a suitable rear rack to mount it to your motorcycle. The rack needs to be: strong enough to support the weight of the Pillion Pooch (15kg) plus the weight of your dog (up to 30kg); and needs to connect directly to the frame or chassis of the motorcycle. Once you identify a suitable rack, the next step is to drill holes in the Pillion Pooch Base Assembly (the plastic tub and metal base tray) where the connections or fasteners will go. This could be in the form of U-bolts or a quick release system that is compatible with your top box. Here is a list of some suppliers who make suitable racks: Back Road Equipment (check out their Slider Rack for a quick release that can be compatible with both the Pillion Pooch and a Top Box) Black Dog Cycle WorksHappy Trails Metal Mule Touratech Harley Davidson Tour-Pak Mounting Rack (available for solo or two up riders) Please contact us if you are unsure about how to mount a Pillion Pooch to your motorcycle by completing the Contact Us form. And we are happy to organise a video call to discuss and explain the best mounting solution for you. Please consider the weight distribution for your motorbike. This means, you need to determine if the weight of the Pillion Pooch (15kg) plus your dog (up to 30kg) will make your motorbike unstable. A general rule of thumb is that if your motorbike can carry a passenger or pillion then it can safely carry your dog.