The new futura fork looks to measure 68mm clearance, it's the frame that could be an issue at 64mm. Or my measurements are way off....
Not tried anything beyond 700*43 which there was plenty of room, only just building up some 650s for it. Might not fit. But the tyres were cheap.
I mean, that's 57mm. How much clearance did you measure and what was your previous tyre?