You guys are crazy, I'm saying it's Blade Wide Defense all the way. It's a really tall WD, that's all, and I can totally see the single line around its top being representative of the blades. At least, I really, really hope this is what it is, because I'd love to use a WD on a normal-mode BD145 without having to resort to Synchrom + BD145 shenanigans.
As for the track, Shield Roller sounds plausible, and if it is a free-spinning ring it will be a fun piece to goof around with for sure. I can't see it giving a custom LAD, as it doesn't seem wide enough and it'd be too tall for it to come into play before toppling over.
If this is Shield Roller and Blade Wide Defense that's enough for me to consider getting it (beyond the fact that the chrome wheel looks aesthetically awesome).
EDIT: Oh lord, if it was Shield Rubber with that shape I'd flip out. I'd put Fusion and RDF on it just to say I have a Beyblade made almost entirely out of rubber, haha!