Viper Rear Bumper Diameter

[Jasonjmccoy]

Does anyone know off hand what the diameter of the Viper rear bumper is? I'm looking to buy a light duty tow hitch for my Nytro, but it's made specifically of the Viper so not sure if it'll work.

 

[maim]

i thought i saw one for a nitro on port yamaha's site when i was shopping for my new apex xtx acessories.