Recently I have tried two types of tyre on my GS-300, here are my comments. Both tyre types are asymetric type pattern (bi-directional)
Michelin Pilot Primacy:
Very Long Lasting, Firm Ride, Low Noise, Good wet and dry performance.
Dunlop SP Sport 01:
Comfortable Ride, Low Noise, Good wet and dry performance.
In general run-flat tyres have poorer ride and noise, this is because of the thick side-walls that gives the run-flat capability.
Justin.