Wheel fitment

[nexus.1]

Hi all,

I purchased an Xfactory x6cubed from a member on here and both the b4.2 instructions and the x6 instructions show 12mm wheel hexes. What I received was this:







The x6 was definately built from a b4.2 as I have the receipt and box containing the unused parts. Could someone please tell me what wheel fitment I have received as I don't want to order the wrong wheels. Also can I convert these to 12mm hex fitting and what parts would I need.