Bicycle Mechanics - Freewheel issues

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View Full Version : Freewheel issues


landshark
05-29-08, 01:45 PM
Ok, so this might be my OCD acting up, and not a real problem, but here goes:

I've noticed that if I'm coasting (or really soft-pedaling) and then start pedaling again the crank rotates forward a little bit before my cassette/freewheel engages -- maybe 1/16th of a crank rotation, but probably less. The rotational distance the crank takes to engage the back wheel seems to be taking longer than I remember, which is why I noticed it. I'm assuming that there's something weird going on with the freewheel/hub assembly, but I don't know if I'm imagining things.

Any thoughts?


FLYcrash
05-29-08, 02:36 PM
Remember that the crank angle needed to engage the freewheel pawls depends on the gear. (The angle at the wheel is constant and depends on the make of freewheel.) In a high gear, engagement will happen with very little crank motion, and in a low gear, more crank motion is required.

Maybe your riding style has changed toward spinning faster cadences in lower gears...?

I know mine has.

RonH
05-29-08, 02:59 PM
You could remove the freewheel and apply some light lube (Triflow) to the back of the freewheel. If needed, whack the freewheel with a small hammer to free the pawls.
That did the trick on a bike I worked on yesterday. :thumb:


landshark
05-29-08, 03:07 PM
Yeah, I'm going to pull everything apart tonight. It's a Ksyrium ES wheelset, and word on the street is that they need a bit more lube than normal. Hopefully I won't need a hammer.

FLYcrash (http://www.bikeforums.net/member.php?u=116593), thanks also for the comment. I don't think my mechanics have changed, but I'm going to look at everything.