Hi all,

My chain failed yesterday on a bike I bought just 3 months and 200 miles ago!

I cleaned it up and found that aside of the busted link, there were SIX other links with easily visible fractures. It is a budget Decathlon mountain bike (ST530), 9 speed with a single chain wheel. I've looked into the Z9 KMC chain and it gets on the whole good reviews so I guess they aren't failing every 200 miles for everyone!

I've emailed pics to Decathlon and KMC but just wondered what your thoughts are. I don't want to just stick a new chain on it - certainly not a KMC - without understanding what could have caused it.

Thanks in advance. Matt.