Reflective vest/clothing
From Ninja250Wiki
Bill H, with 50 years of motorcycling experience, and The Hurt Report, say that wearing a visual impact vest is of immense value. Bill recommends the Conspicuity brand.
"Conspicuity makes the best, non-flapping, zip-front model I know of for about $55 and it lasts for years and years."
There are other options: Check out this discussion on the main board.
