I recently bought this off craigslist and I was wondering if it is really what the seller says it is. There is a Raleigh logo on the front so I can trust its Raleigh.

What confuses me is the rear fork part because when I see other road bikes and fixies, their rear fork thing is straight and narrower. I want to convert my bike to a fixed gear but I am not sure if the fork will allow it.

I have attached pics.