Bicycle Tag of bike

There are two media companies, OMD and PHD, in North Crescent which along with "I've an hour" were my clues.
As always, the new one is easy if you recognise it, which I don't, so a clue would be handy.

I thought the Enola Gay was a reference to bomb shelters which, when searched together with Eisenhower, did give the correct answer...

I didn't recognise the new one either but a 'round the houses' search via the builders' current projects got me there fairly easily.