Originally Posted by
prj71
What's flawed about it?
I guess you missed the OP’s previous thread about his theory that the lower jockey wheel had worn and caused the chain to catch on the cage and destroy his Shimano derailleur.
He insisted it was due to Shimano’s flawed design. He was quite adamant; complete with sketches depicting the design flaw.
But it all worked out because the OP was able to replace it with a non-Shimano rear derailleur for $2.25.
John