What you need is a small metal bracket/strip with two holes to space it farther out. Tis may cause the top to tilt forward a little bit.
When I got my front rack the previous person tossed these in as he had the same problem. On my bike I have the ird cafam cantis and they are pretty thin in thickness, so I can get away with not using the extensions, but its a really tight fit. I can still open them up to remove the wheel but there's not much worki g room.
I'm not home at the moment, but I can send pics if you need to see something. Personally I would just browse the aisles at the hardware store for the right bits to make it work.
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