I don't use the incorporated tow bar ( I would love one) but I use the Ready Brake system. It is a 2" receiver with a surge cylinder and an aircraft cable that attaches to the brake pedal on your vehicle. My tow bar attaches to the Ready Brake receiver. You slow, the surge cylinder compresses and pulls the brake pedal. No electric parts required, no boxes to move around or store. I have used it for 4 years and nearly 40,000 miles without a hitch. And it is priced lower than any other system out there. I highly recommend it.