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Protect shallow cracks and thin aid seamsMetolius’ Ultralight TCUs have set the standard for three-cam units for years thanks to their narrow head width durability and light weight. Direct Axle Technology DAT makes Ultralight TCUs the lightest cams in the world! DAT allows for more placement options in shallow narrow or bottoming placements and makes tricky placements easier due to better cam lobe visibility especially in the small sizes. Each TCU is hand built inspected and individually tested in Bend Oregon. Plug ’em in!