| Chain - Tight spot
Hello
Very happy ST4s owner here
Can anyone explain why I always seem to get a tight spot on chain driven bikes. What causes it?
I am very careful adjusting and lubricating the chain and I am a careful rider (ie I don't pop wheelies or generally give the bike real stick)
I knew I had a tight spot last Autumn and It was commented on at the MOT a couple of weeks back. I presume it is still OK to ride (making sure I adjust correct tension at the tightest spot) short term but probably means new chain and spockets before I head down to Bordeaux for the wine festival this summer.
The bike has done 13,000 miles so chain etc probably about due for renewal but I don't want to put on a new chain set and get another tight spot straight away.
Is this just a normal sign of aging on a chain? as seem to get them on most chains I have fitted over the years. | 
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