Dirt Bike Tie-Down Straps
Tie-down straps may sound kinky, but there's nothing kinky about a damaged dirt bike or pickup truck, not to mention the possibility of causing an accident because you didn't secure your dirt bike properly. There are several options when it comes to dirt bike tie-down straps: cam type, ratchet type, and a strapless truck bed system.
Soft tie-down straps: No matter which tie-down straps you end up using, soft tie-downs are much better than hooking a metal S-hook onto a metal handlebar. The soft tie-downs are sold separately or as part of the tie-down itself. The image shows the soft tie-downs separately (black), as part of the tie-down strap (red), along with a regular S-hook tie-down (blue). The tie-downs have different size cams and S-hooks for different weight ratings but since dirt bikes aren't very heavy, most tie-down straps will work fine. When attaching the strap to the bike's handlebars, keep the straps away from any wires or cables so they don't get crushed. These Pro Taper tie-down straps have the soft straps built into the strap, and if you already have the straps you can buy the soft tie-downs separately.
Ratchet tie-down straps: Ratchet tie-downs have been around for a long time and have some serious cranking power. They can definitely be used to tie down a dirt bike, but given the size and weight of most dirt bikes, the ratchet tie-downs are almost overkill and they can be cumbersome to use. The other big drawback is the 'spring' factor when releasing the ratchet strap from the bike because there's no easy way to release the ratchet, so it's either tight or loose. The springing action is fine with ATVs or lawn mowers, but a dirt bike might be harder to balance without someone there to help hold the bike when the tie-down is sprung. This four pack of ratchet tie-down straps has over 700 ratings and 23 answered questions on Amazon.
Cam lock tie-down straps: Cam lock tie-downs are easier to use than ratchet straps and have plenty of holding power. Once the bike is in place, simply pull each tie-down to remove most of the slack, then make sure each side is pulled the same so the bike isn't leaning one way or the other. Wrap the excess material around the taut part of the tie-down as an extra precaution against the cam coming loose when travelling on bumpy roads. It's also a good idea to not transport the bike with the kickstand down. If the tie-down does work its way loose, the kickstand won't keep the bike from tipping over and it can sometimes act as a pivot, or it can break altogether. If the bike does somehow come loose from the tie-down, it's better that it just falls over onto its side rather than pivot on its kickstand. Cam lock tie-downs are the most widely available (i.e. at Lowe's, hardware stores, Sears, Walmart, etc.) as well as Amazon. Theses Ancra cam lock tie-downs are the ones pictured.
Locking tie-down straps: Lock Straps are cam type tie-downs with a carabiner at each end that has a built-in combination lock and a thin steel cable inside the strapping material. Nothing is 100% foolproof, but thieves are opportunists and will always select the easiest and quickest target. The locking carabiner is an extra step and might make the thieves move on to an easier target so it can't hurt to have an extra layer of protection if you can't keep an eye on your bike for any extended period of time. The Lock Straps locking tie-down might make your insurance company happy as well. They can also be used to secure gas cans, coolers, etc. A note when shopping - they're usually sold separately, not two to a pack.
Going strapless: It may seem a bit extreme to drill holes in a pickup truck in order to transport a dirt bike, but if you're a serious privateer driving all over the country, a strapless system might be a good option in order to avoid compressing the forks for an extended period. Risk Racing has a strapless tie-down system that's been around for a while and has gotten good reviews. Once the rack is attached to the pickup bed, the dirt bike is secured to the rack via the footpegs. You set the bottom jaws level with the bike's footpegs, then step on the top jaw to sandwich the footpegs in between the jaws. A knurled hand tightener secures (and releases) the jaws. Although the base itself is stationary the side jaws are removeable. Be sure to read the reviews on Amazon as they talk about clearances for different bikes (at least 13" tall, no more than 14" wide, etc)
Generic tie-downs straps are available in many locations (Lowe's, hardware stores, Sears, etc.) and they should work for dirt bikes, but check the many online motocross gear stores as well. Dirt bike soft tie-downs are only slightly more expensive than generic tie-downs, and your bike is worth a few extra dollars