Jacking a bike requires a flat, solid floor or driveway. Roll the 5.1-inch-high Jack under the bike from the right using the large handle. Once positioned under solid support points, raise the Jack's support platform using the foot pedal, while steadying the bike by holding the handlebar. As the platform rises, a ratcheting safety catch offers positive stops at 11.8, 14.5 and 16.5 inches off the floor. That's about average for maximum lift height among the lifts we have tried, some of which go as high as 21.8 inches, and plenty for most chores, including wheel removal from virtually all rear fenders. The Jack's rails may block access to the drain plug on some bikes, however. If the hydraulics fail, the safety catch keeps the bike from dropping. If you are going to remove a wheel, which might unbalance the bike, or perform some vigorous wrenching, use the two included ratcheting tie-down straps to secure the bike to the jack. Some bikes barely balance on the jack and tying them down before lifting is a good idea too. If you don't want the jack to roll around, there are screw-type brakes to lock it in place, or you can move the Jack around with the bike aboard. Maximum capacity is rated at 1500 pounds, 100 pounds more than the max-rated lift we have tried previously. To lower the Jack, pump the lift pedal once or twice to disengage the safety catch, then press the release pedal, which gently drops the bike back to the floor.