Metzler RaceTech's to OEM Tyres - what to expect?

So before I binned the bike I had a set of Metzeler RaceTech's on her - K1 front (120/70) and a K2 rear (180/55). They were the tyres that came with the bike and both had seen better days - the rear was squared off a little. Anyway, I'll be putting some OEM Dunlops on the bike when she's back on the road - I got them with the front end bibio sold me, both tyres are in great condition.

What I'm wondering is what can I expect in terms of feel and performance? This bike is my first bike so the Metzelers are the only tyres I've known and I think I may have been spoilt with them (although from what I read the SV really shouldn't have a 180/55 rear fitted to it...). I've read various things about the OEM tyre and if I'm honest I'm already worrying about how it'll feel; I liked the confidence the Metzelers gave me, knowing they'd always outperform me. I'd class myself as a fairly pacey road rider although I'm very much still learning.

Any advice/help/suggestions?