Study: Roof racks great for bikes, bad for mileage
By David R. Baker, San Francisco Chronicle
For snowboarders, surfers and mountain bikers, the car roof rack is an indispensable accessory, essential for weekend getaways.
Unfortunately, it’s also a bit of a gas hog.
A study published Monday found that a seemingly innocuous rack can cut mileage by as much as 25 percent, depending on its configuration and whether it’s fully loaded.
