I wanted to add Rizoma Vision LED turn signals to my 2020 Svartpilen 401 because the North American incandescent signals ruin the look of the thing, but I couldn’t find good answers to a few questions.
Most of the Rizoma sources indicate that resistors are not required, and that the signals won’t hyperflash. I assume this was true on the ’18-’19 bikes, but it’s definitely not accurate on the 2020s.
Rizoma includes an assortment of resistors with the indicators (and some nice plans of how to use them), but doing it per-corner is exhausting and (particularly at the front) there’s no room to incorporate them.
Rather than doing that, you can just pick up a flasher relay and replace the stock relay under the V-shaped plastic cover. There are two relays under that cover, and the flasher is the one to a rider’s left. You’ll just need to make two modifications to the new generic relay: (a) Cutting off the useless plastic tab, and (b) Changing the pins so that when viewing the connector from the top, clip up, the black wire is on the left, the middle position is empty, and the red wire is to the right.
I couldn’t find any resources on how to get into the wiring for the back. I’m guessing that’s because, having tried it, it’s super-easy. You just undo a single Philips screw to remove the cover, and then undo the two bolts (I belieeeeve 8mm Allen?) and the whole thing drops out and exposes the connector. If you’re using the Rizoma EE114H wiring adapters, you can just bundle all those up and shove them up in the tail section.
If you shove a throw pillow between the forks, it’ll support the headlight and gauge assembly so that you don’t need to remove the whole thing entirely. A little tight, but meh. Since the electrical system of these bikes is, by reputation, persnickety, I didn’t want to unplug anything I didn’t have to.