Thursday 12 April 2012

An interesting gear problem

This is quite an interesting but somewhat annoying problem!



When the drive chain is running on either of the two large front chain rings and the rear shifter is operated, the chain glides smoothly from one cog to another without a problem. However if the front shifter is then set to use the smallest inner (22T) chain ring, the top jockey wheel on the rear derailleur fouls the block when the chain reaches the largest 34T inner cog. I've checked all possible gear combinations and as far as I'm aware, this only occurs when I'm using the exact gear combination mentioned above!

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