-> I'd suggest to try the seat post, not the seat. I constucted the
-> handle bar for my 28" uni this way and it works great. Michael Kirsch
-> has tried attaching a handle bar directly to the seat, but the base
-> plate was not strong enough to withstand the forces it had to stand.
-> Another advantage of attaching it to the post is that you easily can
-> adjust the hight. And last but not least it's much easier to build.
Any chance you could make a picture available on the net we could look