Performance Machine Pro-Am 18 x 5.5 Front Wheel For Harley Touring The Pro-Am Wheels feature five lightweight directional spokes machined away exposing smooth machine lines behind the finish. They back-cut the rim lip to reduce mass at the outermost area for decreased rotational inertia and enhanced performance. These wheels are about 2 pounds lighter compared to the standard PM Image Series wheels. Features: Forged wheels place the highest material strength in the same direction as the operating load, creating a light and strong wheel Feature the contour rim lip for a graceful arc from rim to lip