Putting your expensive bicycle inside your car can not only effectively prevent it from getting dirty during transportation, but also avoid accidentally hitting it when reversing, which might happen if it were hanging at the back of your vehicle. Additionally, it ensures that your bicycle won't be easily stolen when you briefly step away from your car. NOTE? In order to achieve the best usage effect, please use the screws that come with the product to firmly fix it onto the vehicel floor or a wooden board. There will be certain safety risks if you install bike on it directly without fixing the L track with screws.