xlab mini wing

I picked one up last summer for longer training rides and my 70.3 last September. Worked fine after I got a couple of longer screws to attach the cages to the base. Before that the cages wouldn't stay attached to the bases and the cages and bottles would both launch on the ride.  Has some adjustability to it on position both height and angle. Bottles stay secure in the cages and didn't have any problems with that. The mini bag that comes with it is a little on the small side and the zipper did seperate on me later in the fall. I think there is a warranty for that, but I haen't checked into it yet.

Overall, I am pleased, but I haven't used any other rear hydration systems.

Hope that helps a little.

it's like a parachute for your bike!

really though... I'm against stuff like this for racing... training it's fine I suppose.