I have a 2007 Streetglide. The speedo has been going to 0 at highway speed. typically it occurs when downshift from 6th to 5th at about 80 and gas on it. i loose the speedo and 6th gear indicator. if i back off the thottle and shift back to 6th everything comes back online. The dealer has been trying to fix this issue since last summer. they have replaced the sensor. hooked monitoring equipment to the bike and miled it up a bit and have been unable to duplicate the problem. After one incident i pulled the starter and checked the plug, the plastic was bent back allowing a loose connection. I situated the plug correctly and had no issues over the winter riding the bike to work a couple of miles a day at a top speed of 45 or so. Any one have any ideas? the bike is still under waranty.