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I've been well impressed with a set of these I have on a bike, noticeably faster rolling than the Michelin Endurance version, and I found them to last a lot longer than Vittoria Corsa's G+ and Pirelli P-zero's that I have on other bikes.
https://www.merlincycles.com/michelin-power-competition-road-tyre-700c-90803.html
EDIT: They are actually nearly £10 cheaper each at Wiggle:
https://www.wiggle.co.uk/michelin-power-competition-folding-road-tyre?lang=en&curr=GBP&dest=1&sku=5360757090&kpid=5360757090&utm_source=google&utm_term=&utm_campaign=Shopping+-+All+Products&utm_medium=base&utm_content=mckv|sZPzrNCYA_dc|mcrid|295270531587|mkw||mmt||mrd|5360757090uk|mslid||&mkwid=sZPzrNCYA_dc&pcrid=295270531587&prd=5360757090uk&pgrid=60973737802&ptaid=pla-522417751344&gclid=Cj0KCQjw-O35BRDVARIsAJU5mQXotCPmZNw52m80SS2BmsHw7kMICGAkxpLmVzIxDUE6exy2KTffn1UaAn2TEALw_wcB
Black, relatively fast rolling, relatively puncture resistant tyres which you can actually buy in 23mm? Rubino G2.0? P-Zero 4s?