Bill In Westchester Short answer, I assume there was a loose body floating around and that caused the jam, and the groove is the result of that jam. Whatever that loose body was, you cleaned it out when you cleaned out the grease. The Mavic Crossmax rear wheel that I just tried to fix has extreme grooving in a regular pattern around the hub shell which was originally smooth
<https://lh3.googleusercontent.com/-r3lQJcOLffY/VvQtBUX9V7I/AAAAAAAADLw/MJU-qc6_jlAdBFFqBcK52mVRjkErZDbAg/s1600/IMG_0864.JPG> What you are looking at is the recess where one of two pawls would sit, and the grooved surface to the right of that recess is supposed to be smooth. Something broke off or got in there and got dragged around the hubshell making that nasty groove pattern. The pawls themselves are damaged, and I assume that bits of metal that broke off these pawls was what got dragged around. I'm going to replace them with some aftermarket pawls that are marketed as being superior to the stock Mavic parts. I'd guess that it's 50/50 that it will work, and this kid (one of my high-school bike racers) might have to spring for a new rear wheel. If I can get the new pawls to stay put, and they remain in one piece, though, it should work for another season or two. It will be on my offseason checklist to check this kid's freehub again. Bill Lindsay El Cerrito Gauchos Team Mechanic El Cerrito CA On Thursday, March 24, 2016 at 6:45:17 AM UTC-7, William R. wrote: > > Hi Bill. I too have been admiring the construction of the rear hub. And > the ease of taking it apart. I had a problem though. I needed to take mine > apart because on my first ride the rear freewheel mechanism locked up. When > I took it apart and looked at the pawls I was amazed that there were six of > them! Very nice. I think it jammed because there was some very sticky white > grease on the pawls. I cleaned it out with wd-40, let it dry and applied > chain oil. I > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
