Anybody knows something about this part?
I contact with the ABT company, but they said, they not make parts for bikes. "Maybe we made this product about 1996, but not sure." That was they answer.
So, anybody?
I've seen this on a bike or two I bought.
I think of it as a cheap repro of the Girvin Flexstem and removed it a.s.a.p. because I don't like the feeling of it.