Kuat Convertible Hitch Lock - $24.99

After dropping all your money on an expensive rack, why not reach for the Kuat Convertible Hitch Lock to keep sticky-fingered thieves from making off with your goods. With the use of a sleeve, this standard hitch lock adapts from 1/2-inch to 5/8ths-inch so you won't have to keep two different receiver pins around. An extra key ensures that you'll have a spare kicking around when you lose your keys rallying singletrack like a maniac. - $24.99