If I where you, I'd check the user manual.The Yamaha Dealer that I picked my R3 up from said use premium only and without ethanol.
This bears repeating to quell the Octane Conspiracy Theories and whispers of Government PlotsFrom The US Federal Trade Commission, Consumer Information:
"It may seem like buying higher octane 'premium' gas is like giving your car a treat, or boosting its performance. But take note: the recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner's manual recommends offers absolutely no benefit. It won't make your car perform better, go faster, get better mileage, or run cleaner. Your best bet: listen to your owner's manual. The only time you might need to switch to a higher octane level is if your car engine knocks when you use the recommended fuel. This happens to a small percentage of cars."
There is other good, basic information regarding higher octane fuel on that website.
That's a good point! $5 is neither here nor there. Why not put the best in?Shell pumps in Canada have ethanol free gasoline (nitro +) and from whatever I've read around, ethanol free seems better than regular. It costs less than 5 bucks more for a full tank compared to regular. So I'm going with shell as much as I can.
If I was considering it for a car, I'd think twice but not for a bike that takes 15 litres to fill.