It's 700 front and back. The Chubb hub on the back throws you off a bit and the wheels aren't lined up properly so the front appears higher at the top.
I had to open photoshop to check that. You are right, they actually are both 700c, just bad build and bad photography ;)
Coulda used the edge of your browser window, just saying
@Breso started
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It's 700 front and back. The Chubb hub on the back throws you off a bit and the wheels aren't lined up properly so the front appears higher at the top.