It definitely wasn't that you were trying to shoehorn knobbly tyres and massive, fatigue-crack-prone aluminium mudguards into an OTP frame not designed to take them, then.
I had been told it would take 42mm tyres but there wasn’t adequate clearance. Also after one attempt to adjust the stays the rear end was reduced to below 130mm which is not great when trying to install a 135mm disc wheel!
It definitely wasn't that you were trying to shoehorn knobbly tyres and massive, fatigue-crack-prone aluminium mudguards into an OTP frame not designed to take them, then.