Combining flat bar and aerobar: Double stem setup or alternatives? I'm currently running a pair of clip-on aerobars (Syntace C2) on my long distance touring bike. I've set the aerobars up quite high, as for me they are not so much about the aero-part (though it still helps when battling strong headwinds), but mostly about giving my wrists some rest and a change of posture. So far, I really like them.

However, I feel like I could benefit from a bit more reach when riding on the flat bar, so I'm thinking about changing out the stem for a slightly longer one with a bit less rise. This is where the trouble starts, since that would bring the aero's way to far away from the saddle. In fact, they could already benefit from a slightly shorter stem.

Thus it seems like a double stem setup (such as some TD racers use) would solve this problem. 1 short stem up high for the aero's, and 1 long stem for the flats. However, the part of the steerer which sticks out is only 68mm.


Any suggestions for stems with a very low stack height (&lt; 35mm) would be appreciated.
Would it be safe to run a double stem setup with conventional stems (with stack height of, say, 40mm). The lower stem would grab the steerer tube full-on, but the upper stem would stick out for 10mm or more.
Something like this (link) would help a lot, but they seem to be out of production. Does anyone know of an alternative?
Perhaps someone has a different suggestion?
A previous question regard rim and disc brakes had this link.... 

Essentially use a long steerer tube and mount two handle bars on the bike. Mount disc and rim brakes so you also have brakes on both handle bars (although you could one set of brakes off two levers.) 

Edit: (The original Link now broken so I have now linked to a Sheldon page (which still has the the broken link) in hope they restore it.) and attached the pic (although too small to be really useful)