Originally Posted by Rob_E

65mm fenders. Yeah, I didn't get that your issue isn't fender clearance, it's frame clearance. My answer stands, I suspect the Schwalbe you want and the Vittoria you have will be very close, with the Schwalbe possibly being slightly smaller. But I was likely wrong about being able to change fenders. I was assuming the fenders were not wide enough, but those are plenty wide. If they are sitting flush against the fork crown and against the rear frame mounts, there's not much you can do apart from getting fenders that go on in pieces around the fork.