Hey Wade,
Please consider removing it from your bike ASAP.
Four years ago an acquaintance of mine had a vehicle ram him in the rear. It was determined the vehicle impacted at less than 15KPH.
That bar you talk about sliced through the lower part of his spine. He is now a paraplegic.
He has taken up the challenge to have them banned in AU after discovering a number of other people had minor rear end collisions who are also left paraplegic.
I don't mean to dampen your nice comment but man, this one post of mine could save you from a truly terrible fate.
You don't need any thin metal bar behind your lower spine when riding a bike mate, no way. Get rid of it ASAP.
All the best Wade.
Cheers
Happy
