Trailering puts a strain on your transom. The weight of your motor, high-speed trailering, potholes, bumps - simple physics says it's not good for your boat. Extreme Max wants to take that weight off your transom's "shoulders." This straight transom saver mounts into your outboard's trim holes and distributes the weight of your motor to the rest of your boat, eliminating strain on your transom and trim rods. We've done the math and calculated how to best support your transom and distribute your motor's weight. We've done the heavy mental lifting to give you unmatched, optimal weight distribution. Easy installation. Easy removal. Go ahead, take a load off your transom. Compatible with the following Outboard Engines: Mercury 75 HP 4-Stroke, Mercury 90 HP 4-Stroke, Mercury 115 HP 4-Stroke, Mercury 175 HP 4-Stroke, Mercury 200 HP 4-Stroke, Mercury 225 HP 4-Stroke, Mercury 250 HP 4-Stroke.