Ordered the bottle holder, after it has performed so well in the magazine Mountainbike. War in the price and weight at first a bit skeptical, but not like when I had the easy returned. The part weighs only 23 g so really, it was weighed again on our kitchen scale. The plastic bottle, regardless of whether 500 or 700 ml is held securely, it also rattles anything. I'm totally satisfied.
Update 11.07.2012 Bin meanwhile Mountain Plus drove several hundred km by my all, even in alpine terrain. The holder still holds Bombenfest!