Fixed slack freecoasters-larger sprocket=less slack?

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2/4/2015 10:59 AM

I've read somewhere that larger sprockets will shorten up the slack on freecoasters with no slack adjustments. Does anyone have any real experience with this? Just got a new freemix and haven't got a chance to ride it yet. Anyone running it got any info or problems with it? Just want to know what to expect. I've been running the v3 federal for about a year now and I'm hoping the primo is a little less maintenance.


2/4/2015 11:03 AM

yes it will, as more of the chain will pass over the driver, and rotate it, for your cranks to get to the same point if you had a larger sprocket compared to a small one


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2/4/2015 11:04 AM

Anyone on here got a freemix with a 30 to 9 set up? That's what I'm thinking of getting


2/4/2015 1:38 PM

say a freecoaster has around 140 degrees of slack (like the clutch will have, apparently). you have to consider your gearing.
9/25 = .36
.36 x 140 = 50.4
thats 50.4 degrees of slack at the crank

9/28 = 0.3214285714285714
0.3214285714285714 x 140 = 45
you get the idea

you can figure out the slack with any given gear ratio if you know your coaster's slack. most coasters are probably close to the same. but this mostly demonstrates there isn't much of difference in how much your ratio affects your slack.


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2/4/2015 3:04 PM

Technically yes, but it won't be a huge difference. Keep in mind the higher gearing will put more stress on the already fragile driver.