Originally Posted by
TimothyH
I love how companies announce as new something which has already existed.
Direct mount derailleurs have been around since at least the early 90's. Some 1991 Paramounts used direct mount derailleurs.
-Tim-
Weren't all the earlier efforts more or less vendor specific?
FWIW emailed PMW and this is what they said re: different RD positioning...
Originally Posted by PMW
Our Direct-mount hanger specs are taken directly from Shimano's
standards. The difference in position you're seeing is probably a
result of where the conventional hanger is located. Standards for
conventional hangers are not as well defined, and typically have a lot
of leeway, sometimes as much as 6 mm total tolerance, depending on which
standard is being used.
True, it is a longer lever arm, but it's probably still stronger than
the link that Shimano supplies, and DM eliminates the link and extra
bolt for what could be considered a stouter hanger.
My personal experience with DM is that it is a big improvement over
previous systems.