DK Custom Products Slam Your Ride! 10.5 Inch BEEFY Struts Harley Sportster~Dyna More Details DK-105-STR Made from American Cold Rolled D.O.M. Steel - Struts are a BEEFY One Inch in Diameter 1" with 1/4" wall DOM Seamless is MUCH stronger than 3/4" solid -simple physics- Better Looking too! Durable Black Powder Coat Finish E-Z DIRECT FIT BOLT-ON INSTALL Using stock bolts (1/2" mounting holes). Center to Center 10 1/2"