Get some alloy caps, or have they been nicked. So wanna go in one of these
Edit: did you have Toyo 888 from new that you replaced?
I might get some caps, I'm not too fussed about getting some though.
Originally if you went for the cage option, you also got 888s, however part way through production they changed it so you could have the cage but also the Michelin PS2s (which are standard fit on the R26) instead of the Toyos, which is what this had, so the front wheels, which I had changed recently, have Eagle F1 Assyms and the rears still the PS2s.
I hope to source another set of alloys in the coming months though which I will shod with some semi-slicks for track/summer use