Most of my mods so far involved lighting. Ultimately, I'll probably add an L.E.D brake light strip to the rear and convert the turn signals into marker/running lights as well. So far, I've replacde the stock headlight with an OSRAM Nightbreaker, added a Comagination Modulator, added T10 L.E.D. postion lamps (20 led each bulb) That I got off of Ebay. I've added a KISAN Trailblazer tail light bulb that modulates/pulsates for 4 seconds and replaced the license plate lamp with one of the aforementioned T10 L.E.D. bulbs. Here is a daytime video showing these mods.
2012 CBR 250R Mods Video Number 1 - YouTube