Bicycle Mechanics - Chain Problem

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Kustomz
09-09-02, 07:02 AM
About 1 mile into our ride we encountered the mother of all hills! It was so steep, that it caught me off gaurd in the wrong gear and I sort of balanced in one spot for a second trying to downshift but actually had the leg strength to pull on over the hill. Is this common on a Shimano HG72 chain, or did someone set the pin poorly on installation?
.http://www.kustomz.com/chain.jpg
It is amazing that the chain blew out before my knee.

Greg
09-09-02, 07:12 AM
Aviod mashing while shifting and all will be well with any chain.

Think of it as a lesson well learned. you could have broke the chain clean in half and be in the hospital right now.

Buy a HG pin and repair it.
Hunter
09-09-02, 07:17 AM
I have witnessed and experienced this to be common with shimaNO chains. I have not however experienced this with SRAM or KMC chains, I also have not heard of this with Wipperman, or Rohloff either.

RainmanP
09-09-02, 08:08 AM
I read a few months ago that the only known chain failure in a major pro race was the Shimano chain on Julio Perez' bike when he was way out front and looked to be on his way to winning a stage in the 2001 Giro. My LBS actually removes factory chains from most bikes and puts on SRAM before letting the bike out of the shop. I'll stick with SRAM.