Joerg wrote:

I use a plastic drinking bottle, one or two
stainless thermoses plus in summer several
re-filled PET bottles (the cheap
"disposable" ones). On long MTB rides
easily five liters.

5l? How long are those MTB rides?

So are all day, usually five to eight hours.

Sounds wonderful, since I got this MTB I've
made daily tours and covered most of the city,
but really just found one great place to go,
and it is only some 25km!

But I'll dig deeper and perhaps find ways
between cities as well that aren't on the big
roads with all the cars.

I have 2*650ml bottles on the frame and a rack
that takes 10kg. I usually lash a drybag to it.
You panniers look interesting

--
underground experts united
http://user.it.uu.se/~embe8573