I'm with Patrick on this. In the old days before master links were common, you installed chains by driving the pin in the right amount, and if you were off a bit, the pin would gradually work its way to one side and the chain would come apart. In my long and unglorious career as a bike rider, I bet I've broken a dozen chains this way, and every one of them happened within a week after an installation. You get cocky from having done it so many times... It happens, but I haven't seen or experienced it with a chain installed with a master link. (Note: This is not to say master link chains are better, just that they're more idiot-proof, which is the whole point.)
It's always called "breaking the chain," but it's not a material failure, like breaking a chain-chain, the kind with continuous links. A guess is that your son's chain's link was a little off, and riding eventually got the better of it. Grant "Doing my best Sheldon Brown imitation" Petersen On Apr 28, 8:03 pm, GeorgeS <[email protected]> wrote: > My son has a Romulus he purchased about six months ago. Several weeks > ago he was out on a long ride and his chain broke. I have been riding > bikes a long time and I've never had a chain actually break in use and > I've never known anyone who has had that happen. He said that on > examination the outside plate simply peeled back at several places and > separated from the pin. That left the inner plate holding the chain > together and then that went. He said he did not hear any noise until > shortly before the chain broke and it was obviously the plates hitting > the RD cage. He took the bike back to the bike store where he bought > it and they said they had never seen such a thing and put it off to a > defective chain which they replaced and sent him on his way. On > Sunday the same problem started to happen. After about 30 miles he > said he started to see the plate on the outside start peeling back at > three points on the chain. This time he was able to get back to the > car before the chain broke. The bike store kept the bike to show to > their ace mechanic and my son is supposed to pick it up later in the > week. Anyone ever heard anything like this? The cranks are Sugino > and the derailliers are 105's. He is riding on good roads in Maryland > right out of DC. > GeorgeS --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---
