Originally Posted by wipe-out
I think 12 liters is sufficient. You get about 300km out of a regular tank, 400km if you stretch. add 12 liters you can almost double that. When will most of us ever need more? Except for the most remote locations a reach of 600km is totally fine. For most of the real world users anyway, most of them probably can do entirely without the tank. Less weight though - is always a good thing, right? Also it would be something to differentiate it from the Touratech option (if the price won't be that factor anyway).
And yeah - we need pictures!
Edit: Of course on could always argue that you don't have to entirely fill up the bigger tank... I'd still think I prefer a smaller, more slim and lightweight solution. It'd also be great if your design, other than the Touratech one, would take into consideration the air filter in a sense that you can still easily get to it.
The air filter will be covered by the original piece ... our BMW will be two separate tanks, regardless of how we choose ...