Original Randy Smith design. Allow the use of narrow glide 19″ or 21″ wheel (found on FX, FXR, FXD and XL models) to be installed in a 41 mm Wide Glide front-end. Include aluminum disc spacer (second spacer for dual disc available), socket head screws, axle spacer and 3/4″ axle. Spacer and axle are cadmium-plated; disc spacer is chrome-plated. Made in the U.S.A..