Ultralight TCUUltralight TCUs are the lightest cams in the world! Direct Axle Technology allows for more placement options in shallow, narrow, or bottoming placements, and makes tricky placements easier due to better cam lobe visibility. Ultralight TCUs feature a narrow head for an amazing array of placements. The U shaped body has enough stiffness to align the cams correctly in a vertical crack and enough flexibility to allow for horizontal crack placements. Range