I went with a higher gear ratio a long time ago with my Bonnie because of the distance riding I do. It helped the fuel mileage and the engine does not work as hard at 75 - 85 mph, my normal cruising speeds on limited access highways. However, the Tiger's engine is made to rev higher than a parallel twin. I am considering going the other way and lower the ratio on my Tiger XC. I will play with it a while longer with the stock sprockets before I make any changes. So far, I am of the opinion that Triumph got the stock gearing close to the optimum for all around riding.