been lookin at LEDs for a while now and from what ive read if your changing your flashers over to LED you may need a load resistor , as they will blink to fast. a proper flasher unit would be better then you save wattage for other electric accessories .however if you are adding LEDs along with your regular incandesant blinkers no load resistor is needed,as your drawing very little from the original load.these guys are very helpful
http://www.customdynamics.com/ . lots of everything LED, resistors , led flasher units etc . most of the Yamaha RSV guys i talk to use these guys and no bad reports . i'll be picking up some LEDs myself from them in Daytona.
