• Hi,
    I recently bought and assembled someone else's done up single speed. I'm relatively new to bike maintenance so had a few questions:
    How taught should the chain be? The tension in the chain is not constant but it doesn't appear to be so varied as to be concerning.
    There is a gap of c.2mm between the shoulder of the right crank arm and the frame when fully tightened. The left hand crank arm's shoulder fits snuggly inside the frame leaving no gap. Is this a problem?
    Any advice much appreciated.
    Cheers

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