Jeremy,

Thanks.  I read your email to my SS RedLine Monocog.  It nodded its stem
and bars in agreement, winked a brake lever at me and then responded by
showing just that amount of chain slack as you have described.  I caught it
in a photo and I agree with you completely on not running a SS chain too
taut.  What a show-off that bike is.

https://plus.google.com/u/0/photos/111838829033930119881/albums/5708720188748611345

-jb



On Mon, Feb 13, 2012 at 2:12 PM, Jeremy Till <jeremy.t...@gmail.com> wrote:

> i would also focus on chain tension as the culprit; it's easy, esp. when
> you're first riding SS or fixed, to focus on derailment to the point of
> getting it too tight for efficiency.  The truth is, single cog drivetrains
> feel best with the absolute minimum amount of tension needed to prevent
> derailment.  Tension is much more critical in off-road riding or fixed gear
> riding, where bumps or high-rpm pedaling increase the chances of
> derailment; for on-road SS riding, it's much easier to err on the side of
> too slack.  But even with a fixed gear, you'd be surprised how slack you
> can run the chain without any real danger (assuming good chainline, of
> course); check out pictures of track racers' bikes at rest and you'll see
> what i mean.  The chain should sag just enough to see it when it's at
> rest.
>
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-- 
John Blish
Minneapolis MN USA

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