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Hello, My friend has a Marin Bear Valley that he has asked me to do a bit of a service on. The chain is the most obvious problem - very rusty and needs replaced. I think the bike is from the early 90s - around 1992. It has a Shimano Deore LX 400 chain drive. Does anyone know what chain I...

Re: Just to follow up what xxnick1975 requesting a photograph of the chainring: here are a few pictures. I think you can see that there is quite a bit of wear and some of the teeth are barely there at all.

Wow! So many helpful comments. Thanks very much everyone. I ordered the Shimano Sora one. It's all bolted together now and works like a dream. xxnick1975 probably had a good point. The original middle chainring had what I believe are called "ramps" fitted. The new one doesn't have these but I...

Hello there folks, This is my first post on your forum here. I've been reading the posts on here for a while but just decided to join. I wonder if anyone would be able to help me with a problem I'm having: I purchased a Shimano Deore DX chainset on eBay a couple of months back and I just got...