this morning i filled my tank with all the gas it would take, and rode off to the woods. It would only stop after 224 kilometers! I wanted to measure the exact content of the tanks and milage, therefor i brought a little fuelbottle and used that to get to a gas station. i rode a few blocks and let it run dry at the gasstation ( actually 100 meters away, since i was doing circles, so i had to WALK to the gasstation on my first day with the large tank... 8O ) When i filled it up i managed to get exactly 15.5 liters in. so id did ana average of almost 1:15, this was in the sand, on trails, fast lanes, and even 25km's of highway since i wanted the type of riding to be as variated as possible. I'm prettysure the tank was completly dry, maybe a little gas was in the original tank ( 0,l5 liter) that you can't use. I concluded that you will have exactly 15,5 liter with the Safari/aqualine tank. How far that will get you is in your right hand..
it takes some getting used to, especially when completely filled up but after the first 50k i found the handling only slighly different. The tanks only feels e little larger than the stocksetup, and sure you feel some weight, but is is not in the way, When allmost all the fuel was gone, i could only feel a snall difference when stretching my leg in a corner, but its not in the way. i did have to change the maximum steering angle appr 0,5 cm on both sides. For the rest everything fits perfecly, the fan is still there, no problems with wiring or fuel lines.
I'm pretty satisfied!