I purchased a set of BST wheels from you a while back. I am now going with different calipers. My problem is that I need to space the rotor 1.5mm from the hub in order for it to be centered in the caliper. Do you have any spacers available?administratorDecember 31, 20170 Comments 0 We do not, sorry. But, we would recommend a precision ground, steel shim from a supply company such as McMaster-Carr.