Bit of show-and-tell. I've been teaching my Tiger 1050 some introductory mathematics to coincide with its 10,000km service, to see if it'd address the too-rich fuel mixture of the OEM 'offroad muffler' and the ECU tune which comes with the muffler. I figured I'd share for those curious. Subtraction Minus Equals: Looks like that's addressed the too-rich fuel-air mixture of the OEM 'offroad' muffler and the ECU tune included with the muffler. Fuel efficiency's a whisker better too. Other thoughts: Still really enjoying the Tiger. It does feel awfully wasted when pootling around in 50kph streets. The difference between 'idle' and '50kph cruise' is about two millimetres of throttle movement. Fuel efficiency below 60kph isn't pretty - Lots of camshaft overlap and an engine barely breathing at all = bad fuel efficiency. Cruising at 60+kph is basically 5.0L/100, cruising at 90-110 is about 4.8L on the flat. The faster you go, the more fuel efficient it gets! Plenty of power, good rider and pillion comfort, good brakes, rah rah rah. Wouldn't mind a Tiger 675 though.