I removed and cleaned my s works chainset today and noticed when it spins without the chain on it , it only manages two-ish revolutions, whereas my dura ace on a different bike spins for ages, I have torqued everything to spec and set the preload correctly , is this normal with s works or is it the new grease slowing things down ?
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S-Works chainset not spinning freely
Moderator: robbosmans
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Sounds like a BB issue unless you have accidentally increased preload. Did it spin well before you removed it?
Evo 4.9kg SL3 6.64kg Slice RS 8.89kg viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Sorry but free spinning cranks 2 turns doesn't really indicate that there is a problem.
While the crank is off next time, take a moment to feel the bearings.
Another way is to put your ear to the seat or frame and spin the crank without a chain. Any grit will usually be heard.
Usually there is a balance between grease thickness and bearing maintenance intervals.
Check that your wavy washer isn't completely compressed. Also it's possible the bb shell doesn't line up perfectly left to right. Hambini has tested bb shell alignment on several frames and has some interesting data.
If your bb bearings can come out of the shell quite easily you might have some ovalization going on, by which you should probably reinstall them using some appropriate retaining compounds. If your bb shell is metal and not carbon, this would be less likely.
While the crank is off next time, take a moment to feel the bearings.
Another way is to put your ear to the seat or frame and spin the crank without a chain. Any grit will usually be heard.
Usually there is a balance between grease thickness and bearing maintenance intervals.
Check that your wavy washer isn't completely compressed. Also it's possible the bb shell doesn't line up perfectly left to right. Hambini has tested bb shell alignment on several frames and has some interesting data.
If your bb bearings can come out of the shell quite easily you might have some ovalization going on, by which you should probably reinstall them using some appropriate retaining compounds. If your bb shell is metal and not carbon, this would be less likely.
Too many spacers, wrong preload.
Mine spins for 20-30 seconds.
Mine spins for 20-30 seconds.
SL8 S-Works Project Black - 6.29kg
IG: RhinosWorkshop
IG: RhinosWorkshop
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