Author Topic: rear shock spring  (Read 950 times)

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Offline motorboy

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rear shock spring
on: June 03, 2020, 03:24:19 PM
Can anyone tell me what the stock rear shock spring rate is on a 2019
thanks
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Offline CBRDEAN0

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Re: rear shock spring
Reply #1 on: June 03, 2020, 03:53:27 PM
The Rally Raid site seems to suggest :

100N = softer spring
110N = standard spring
120N = hard spring
130N = extra hard spring.

Not sure if the above is in reference to stock spring rate

Offline motorboy

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Re: rear shock spring
Reply #2 on: June 03, 2020, 04:08:50 PM
Thanks but I need the OEM rate
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Offline Oyabun

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Re: rear shock spring
Reply #3 on: June 03, 2020, 08:17:08 PM
It is not advertised anywhere, but I have made a rough calculation a few years ago for the 2016 oem shock. Let me find it somewhere.

Offline motorboy

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Re: rear shock spring
Reply #4 on: June 03, 2020, 08:19:37 PM
*Originally Posted by Oyabun [+]
It is not advertised anywhere, but I have made a rough calculation a few years ago for the 2016 oem shock. Let me find it somewhere.
I seem to remember reading it somewhere -just can't find it when you want it
It's not a big motorcycle just a groovy little motorbike

Offline CBRDEAN0

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Re: rear shock spring
Reply #5 on: June 03, 2020, 08:47:15 PM
These guys seem to think it is 10.7kg/mm which is 105N

https://advrider.com/f/threads/honda-cb500x.840842/page-432#post-27577962

Offline CBRDEAN0

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Re: rear shock spring
Reply #6 on: June 03, 2020, 08:51:43 PM

Offline Oyabun

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Re: rear shock spring
Reply #7 on: June 03, 2020, 09:42:10 PM
*Originally Posted by CBRDEAN0 [+]
These guys seem to think it is 10.7kg/mm which is 105N

https://advrider.com/f/threads/honda-cb500x.840842/page-432#post-27577962

Just measured the spring parameters again.
It is a non-linear spring - with the coil outside diameter starting at roughly 75mm and tapering down to 68-ish. Which translates to 102N/mm to 110N/mm spring rate based on a quick back of the envelope calculation.
Last Edit: June 03, 2020, 10:13:50 PM by Oyabun

Offline motorboy

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Re: rear shock spring
Reply #8 on: June 03, 2020, 09:58:11 PM
So the standard RR spring is about the same as the OEM spring--that makes sense
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Offline Oyley

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Re: rear shock spring
Reply #9 on: June 03, 2020, 11:43:25 PM
That costs more than the Rally Raid version of the Tractive unit by around 25GBP

 



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