"Of the many potential hazards that come with a towing trip, a breakaway may be the scariest and most precarious. While drivers can correct certain conditions like trailer sway, for example, a breakaway will leave you with absolutely no control over the vehicle you formerly were towing. Once a trailer or boat separates from the tow vehicle, unless it's equipped with a functional breakaway kit, the trailer will continue moving forward until it either loses momentum and slows down or hits something else. Breakaway kits aren't just something to consider as an option -- many states require them because of the security they add to towed vehicles."
http://auto.howstuffworks.com/auto-parts/towing/equipment/pr...
/breakaway-kits1.htm

"Kit freinage hydraulique remorque à partir du tracteur - Socomhy ...
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Ce kit permet de freiner la remorque à partir du tracteur, consulter aussi le freinage de remorque, ou le freinage de secours de remorque. Vous commandez ..."