My next problem child. The Gen1 EDS OX removable battery rear derailleur that I mounted on the FS MTB bike I build last year has always has shifting problems from the get-go. I had only ridden this bike around 125 miles until last week. (I just rode it another 100+ miles last week.) During the 7 days of harsh single track riding, the derailleur was continuously having shift problems. (Of course, all my riding buddies speculated on that the problem is/was.)
When I arrived home, I noticed that the derailleur body wobbles around the hanger bolt. (Hanger BOLT is tight!, and hanger is not bent!) It wobbles enough that it sometimes wont shift into the 12gear, or shifts up or down by itself depending on pedal load during shifting.
I removed the hanger bolt, to discover that this derailleur is machined differently than my other 4 gen 1 EDS OXs. Looks like Wheeltop improperly machined a bore too deep into the derailleur body, and rather than scrapping the part, they did some "rework" with a custom aluminum C-ring (second pic.) and a washer. This fix they did appears to me to be a Cloodge so they could throw the derailleur over the fence and sell it through an "unauthorized seller" (I wonder how many of these problem children have been made and sold. (I have another Gen1 EDS OX that had manufacturing problems that they wouldn't warranty, where I had to hand file an interference to get it to shift smoothly.)
I am attaching some pics of the problem. I have no choice but to resolve this problem on my own, because I doubt that Wheeltop will step up and give me a replacement derailleur due to their terrible quality control!!!
Note: in the first image the "defective body" is the lower derailleur in the picture. If you look closely, you can see that the bore into the body is deeper by close to 2 mm, versus the derailleur shown in the top of the picture.
