48mm WP open chamber forks removed from a 2004 LC4 625SMC. The uppers have faded some as you can see in the photos. These forks were removed from a fully functional bike and are in good condition with normal signs of use. There is no sign of leakage on either of these forks. Upper clamping surface is 54mm, lower clamping surface is 60mm. These forks use a 26mm front axle. I did not disassemble these forks. My evaluation is based on a test ride on the bike and a visual inspection only. These forks will fit the bikes listed below and others as well. They will work on KTM big bikes that have the wider spacing on the triple clamps, as the lower boss on the left side is thicker that on the typical dirtbike forks from KTM.