Is this only for CK hubs?
No, I guess it won't.
Will this fit a 2012 Blur LTc?
I'm 5'10" and wear a 42R jacket. XL is slightly loose in the shoulders but fits really well overall.
Love my AStars Bionic Jacket! I wear a 42R jacket and all HnR had was XL but I got it anyway. It's a little loose in the shoulders, but with the wide kidney/rib protector strap it doesn't move around. The arms fit like a glove and the elbow pads don't move like some I've tried. Wish I could have gotten a large, but I'm pretty happy with this one.