GooDeal Lgnition Switch with Keys 35100-428-017 for Honda XL250 XL250S XL500 XL500S Replaces OEM #: 5100-428-405, 35100-428-017, 35100-428-840 Outside Diameter of Main Switch Body: 24mm. Overall Depth of Switch: 43mm. Switch Positions: Off / On (no lock position) Notes: The keys Only for the Ignition Switch.