parawolf wrote:You haven't done any standing starts (track stand then high torque/strength take off at lights) or similar have you?
Marx wrote:Would you consider dropping that one damaged link & continue running the chain?
(I think standard roadbike derailuers can manage a chain that one link too short).
((That's if oyu're not going to do the warranty claim on it)).
lock wrote:Anyway, I read Ultegra, chain and fail in the same sentence and thought that sounds familiar;
What's happening with your Ultegra 6700 chains? I've had mine break after only 2,500km. I'm reading stories of the same model chain breaking after even shorter distances. I'm hearing stories of rude customer service on your part.
I've worked as a bike mechanic, ridden tens of thousands of kms on Shimano gear and never had a failure such as this. I'm just so glad I wasn't climbing a hill or powering down a descent when the chain failed.
I am just going to stop using Shimano gear until this issue is properly raised and addressed - you can't have chains failing after such short intervals.
brycerider wrote:Interesting link to that blog - looks like the metal hasnt been treated properly. I've still got two DA 7800 chains in the box - must find some more I think.
As for life I tend to get 4-5k out of a chain before its excessively worn - defined as the point at which you can swap to a new chain without getting slippage.
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