By this time tomorrow, you will be able to order the patent pending Tedbrakes Front Braking System Installed on NEW Bad Boy Mowers Lightning Series, AOS Series, and AOS Diesel models on EBAY. Any Deck Width, Any options you want are available. Mowers with brakes installed will not be sold without ROPS, and price of the braking system installed by us on these mowers will be $650 in addition to the cost of your new mower. The Front Brake System will only be available with the purchase of a new Bad Boy Mower. We are pursuing other manufacturers, and will keep you posted on when they will be available. To speed this process up for your mowers manufacturer, contact them by clicking here. At the current time, no post production kits will be offered because of the many different makes and models over the past 20 years offered.