I also ordered two WLED-X5 Natural White bulbs...that was what was in there before. Has anyone tried any of their other colors? The pix of people that have used them look really good.
Any 194 wedge will fit in the tach/ speedo.
Here's a thread with lots of pics of the leds.
http://www.valkyrieforum.com/bbs/index.php/topic,34551.0.html.If the lights flicker the bulbs may not be seated in the sockets well enough or the harness connector may be loose or corroded. Check the connector and really seat the bulbs hard, Here is another thread which shows the connector and a minor mod using a rebel harness for led trun signals.
http://www.valkyrieforum.com/bbs/index.php/topic,35394.0.html