Setting sag on rear...
 

[Closed] Setting sag on rear , go by specced stroke or shaft lenght ?

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Hi ,

Quick question if anyone can clear it up ,

When measuring sag at the rear shock am I looking for a percentage of the amount of visible shaft when I'm off the bike or is it the stroke length of the shock as put by fox ?

I have an rp23 on a commencal meta and it has 60 mm of shaft visible but commencal told me that the bike came with a 51mm stroke shock .

So do I work with 60 mm or 51 ?

Thanks for inputs


 
Posted : 02/06/2018 3:00 pm
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Maybe , of the 60mm shaft length only 51mm is for travel and the remaining 9mm is after the shocks bottomed out. Easiest way to test this would be to deflate the shock &.see how much travel the shaft has & go from there. But, I ride a hardtail so may not be the best person to answer this.


 
Posted : 02/06/2018 3:12 pm
 poah
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go by spec'd stroke.  is it a 200x51 shock?


 
Posted : 02/06/2018 3:36 pm
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Had this on my Mojo HD. Confused the hell out of me until I figured it out.

Go by spec'd stroke.


 
Posted : 02/06/2018 3:39 pm
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Let all the air out and see if it uses the full shaft. I had and rp23 on a Spesh enduro and was convinced by a local suspension 'expert' to replace it with a monarch plus. The rp23 had a limiter inside so although it was a 63mm shaft it only used 54mm at full travel, the monarch was 63mm but used the full length which resulted in a snapped shock mount. Luckily I did this with no air in the shock while standing still or I'd probably have been on the way to A&E. Set the sag based on the stroke length, not the shaft length


 
Posted : 02/06/2018 3:42 pm
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"go by spec’d stroke.  is it a 200×51 shock?"

yes according to commencal my size and model of meta takes a 200 x 51 shock and I still have the original shock on the bike . But on measurement there is 60mm of shaft visible . Ill try see how much of the shaft dissapears up into the shock with all the air out , if there is about a cm left then Ill know ?


 
Posted : 02/06/2018 6:04 pm
 poah
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it will be a 200x57 but has a spacer to make it 51/50


 
Posted : 03/06/2018 10:44 am