I just finished Rizoma indicators. I did the Leggera in the Rear and Corsa in the front. I ordered the wiring adapters EE047H, and the adapter cover plates FR230B. I did not use resistors or change the flasher and the flash rate is fine. Everything just plugged right in and worked great, they are really bright. I cut the wiring down and soldered it, but you don’t need to.