Your chrome one is the predecessor to my white one as mine has 1 1/8" threadless steerer forks and I
think that one should be 1" threaded. I nearly bid on that one, the only reason I didn't was because it had no forks.
I love SX's and I'm slowly building a collection of them. I currently have the 125 Pro, a Devo Pro XL and a Devo 24". I was hoping to buy a white MX from Alan's but the day I'd got enough cash in my paypal account, it was sold