My Altenburger factory brochure shows both an "a" welded bar installation,
or the "b" clamp on method for the chainstay.
Ted Ernst
Palos Verdes Estates
CA USA
>
> Group---- Regarding Marcus Helman's question on the mounting of the
> Altenburger rear der. to the chainstay----- the top fitting of the
> derailleur is a channel shaped plate that fits over a (approx) 1/8 x 3/8
> x 2" long plate that is welded directly to the stay, and attatched to same
> with two small screws/bolts. I could supply photos of same if I knew
> how...
>
> Nelson Miller // Seattle WA // USA