I picked up an 09 FZ6R this week, 20K miles. It needs rear tire, chain, and sprockets. I'm assuming the 16 front, 46 rear is the stock setup because they are worn out. This thing feels like its really revving at 65MPH. Pulls plenty hard for me down low currently. I wouldn't mind trading a little pull for lower revs at highway speeds. Any advice from people with experience that have experimented would be appreciated. Also any brand advice, I'm looking at Vortex 520 right now and a DID chain. There is a huge price differential in chains.