Bobs Machine Reversible 10 Degree Transom Wedge Bobs Machine Reversible Transom Wedges provide either a positive or negative trim for your boat. Constructed of cast aluminum, these strong wedges look great and will never crack. This transom wedge provides 10 degrees of either negative or positive trim. In most cases, transom wedges are used to provide negative trim for when your bow will not come down enough due to the angle of the motor. Transom wedges are an effective fix. Fits all motors with