Kawasaki ZZR-1400? (Kicks out about 192bhp with Ram Air at high speeds, at lower speeds more like 184ish..)
Suzuki GSXR-1400? (More streetfighterish so less power than the hyper-rocket ZZR)
Multiple Harleys, various other cruisers.
Many larger motorcycles are 1400cc, and there are even larger engines in Goldwings.. anyone who thinks 1200cc is the largest production engine in a motorcycle is a numpty..
A Harley isn't what I would call a production bike though, most 'Harleys' you see aren't even real Harleys, they are just custom choppers. Never seen a 1400cc superbike in my life either. Not saying they don't exist, but how can I know if I've never seen one?