Before you head out shopping, think about the following questions to help you select a rack to fit your needs. No rack is ideal for all vehicles and users. The tradeoffs you make will depend on your situation. Roof racks attach to the top of a vehicle. It's important to know if your vehicle has gutters or not.
Roof racks can be noisy from wind resistance.
They require someone with strength to hoist the bicycles to the roof. You have to be careful not to forget that the bicycles are up there and drive into a garage. With some roof racks, you can't open your vehicle's sun roof, however, they do allow full access to your trunk. Rear racks mount on the back of a vehicle with brackets and straps. They can scratch paint and can be hard to attach.