Product Description: This adapter is for use with Lefty's that have clamped on crowns. For this kit we decided to replace the top and bottom crowns entirely. We CNC machinded our crowns from billet aluminum and we form (not cut) all threads for increased thread strength. There are some stack height and headset limitations. Please call technical support for more information. 877.584.7321
For more detailed information call us at 1.877.584.7321