I am going to put new tires on my 1991 K100RS and would appreciate any input from members. I currently have Metzler Z6 on the bike, 120/70 17 front and 160/60 18 rear. My riding consists of 25% short hops around town and 75% on the open road, mostly two lane, about half and half solo/two up. I am leaning toward Metzler Z8 or Michelin Pilot 3, but would consider others. I don't ride extremely hard in the twisties, live in a fairly dry climate, and am looking to get decent mileage. Thanks for any advice.