In 35 years of riding I have broken two RD's, but both had lots and lots of miles on them. Both Campy. One was a NR, which broke much like yours and the other was a Chorus which broke at the clamp, perhaps from over tightening. Good news though, if you can trade up the new Ultegra RD 6700 is an absolutely fabulous derailler. I say that despite not being a big shimano enthusiast.
Michael On Sunday, January 18, 2015 at 5:56:14 PM UTC-5, John wrote: > > Towards the end of my ride today, I heard a loud crunch and my Ram lurched > to a stop. Didn't take long to figure out the cause. My Shimano Tiagra RD > had separated into two pieces. The larger chunk with cable attached > wrapped around the right chainstay and lodged in my spokes. The other > piece remained bolted to the dropout. Fortunately, I was going very slowly > at the time, so no damage was done to my wheel. I wasn't shifting at the > time, just pedaling along. I was able to break the chain and remove the > cable so I could at least roll my bike to where my wonderful wife rescued > me. Surprising because the RD is only a couple of years old and has not > suffered any tip-overs that might have damaged it. I took a couple of > pictures of the fracture: > > https://www.flickr.com/photos/53546004@N07/16312803255/ > > https://www.flickr.com/photos/53546004@N07/16125257318/ > > Is it just me, or is this not uncommon? > > Off to shop for a new RD. > > John > -- 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 http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
