FOX 40 spring dimensions

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FOX 40 spring dimensions
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Posted: Apr 26, 2018 at 3:18 Quote
Hi. Is there someone willing to measure green steel spring for FOX 40 ( 2012 + ) for outer and inner diameter, lenght and weight ?

I'm trying to find out if this spring will fit my Marzocchi 380 C2R2 Ti 2017 fork. And yes, I tried to google it and so on, but few random post "yes, it will fit" aren't enough for me. Also there is some difference between 2011 - and 2012 + spring models...

Here in my area fox springs are roughly half the price of marzocchi, so its worth trying.

FYI: Marzocchi 888 2008 spring DOESN'T fit Marzocchi 380 2017

Thanks

Posted: Apr 27, 2018 at 23:23 Quote
speedygonzaless wrote:
Hi. Is there someone willing to measure green steel spring for FOX 40 ( 2012 + ) for outer and inner diameter, lenght and weight ?

I'm trying to find out if this spring will fit my Marzocchi 380 C2R2 Ti 2017 fork. And yes, I tried to google it and so on, but few random post "yes, it will fit" aren't enough for me. Also there is some difference between 2011 - and 2012 + spring models...

Here in my area fox springs are roughly half the price of marzocchi, so its worth trying.

FYI: Marzocchi 888 2008 spring DOESN'T fit Marzocchi 380 2017

Thanks
ive got a blue 2013 Fox 40 TI spring I can measure for you,if that's any good.I replaced it with a green one,so should be the same dimensions.

Posted: Apr 28, 2018 at 12:24 Quote
jase111171 wrote:
speedygonzaless wrote:
Hi. Is there someone willing to measure green steel spring for FOX 40 ( 2012 + ) for outer and inner diameter, lenght and weight ?

I'm trying to find out if this spring will fit my Marzocchi 380 C2R2 Ti 2017 fork. And yes, I tried to google it and so on, but few random post "yes, it will fit" aren't enough for me. Also there is some difference between 2011 - and 2012 + spring models...

Here in my area fox springs are roughly half the price of marzocchi, so its worth trying.

FYI: Marzocchi 888 2008 spring DOESN'T fit Marzocchi 380 2017

Thanks
ive got a blue 2013 Fox 40 TI spring I can measure for you,if that's any good.I replaced it with a green one,so should be the same dimensions.

That would be great, thank you very much Smile

Posted: May 1, 2018 at 0:09 Quote
speedygonzaless wrote:
jase111171 wrote:
speedygonzaless wrote:
Hi. Is there someone willing to measure green steel spring for FOX 40 ( 2012 + ) for outer and inner diameter, lenght and weight ?

I'm trying to find out if this spring will fit my Marzocchi 380 C2R2 Ti 2017 fork. And yes, I tried to google it and so on, but few random post "yes, it will fit" aren't enough for me. Also there is some difference between 2011 - and 2012 + spring models...

Here in my area fox springs are roughly half the price of marzocchi, so its worth trying.

FYI: Marzocchi 888 2008 spring DOESN'T fit Marzocchi 380 2017

Thanks
ive got a blue 2013 Fox 40 TI spring I can measure for you,if that's any good.I replaced it with a green one,so should be the same dimensions.

That would be great, thank you very much Smile
480mm long x 30mm diameter

Posted: May 1, 2018 at 1:48 Quote
jase111171 wrote:
speedygonzaless wrote:
jase111171 wrote:
ive got a blue 2013 Fox 40 TI spring I can measure for you,if that's any good.I replaced it with a green one,so should be the same dimensions.

That would be great, thank you very much Smile
480mm long x 30mm diameter

Great, thank you very much. The lenght is OK. But 30 mm is outer diameter ? I would need to know the inner diameter of the spring. Could you please measure this one also ?

Posted: May 1, 2018 at 6:53 Quote
speedygonzaless wrote:
jase111171 wrote:
speedygonzaless wrote:


That would be great, thank you very much Smile
480mm long x 30mm diameter

Great, thank you very much. The lenght is OK. But 30 mm is outer diameter ? I would need to know the inner diameter of the spring. Could you please measure this one also ?
20mm inner/30mm outer

Posted: May 1, 2018 at 8:58 Quote
jase111171 wrote:
speedygonzaless wrote:
jase111171 wrote:
480mm long x 30mm diameter

Great, thank you very much. The lenght is OK. But 30 mm is outer diameter ? I would need to know the inner diameter of the spring. Could you please measure this one also ?
20mm inner/30mm outer

OK. Then this spring wouldn't fit. It should be minimum 22 mm inner diameter. But thanks a lot for your time and effort !

Posted: Oct 18, 2019 at 1:50 Quote
I know this is an old thread but it came up in Google search for "will a Fox 40 spring fit Marzocchi 380 "

The answer is yes.

I've just fitted a blue Fox spring in my 380, and whilst it's true that the ID is 2mm narrower it's easily worked around.

The only part that goes into the spring is the end cap on the pre load plunger. This is easily removed from the preload rod by twisting.

The spring will now fit into the 380, however, the rod will rattle inside. You could either shave down the end cap or do what I did which was drill a hole into a synthetic wine cork. It fits perfectly inside the Fox steel spring and stops it rattling, whilst still allowing preload to be added.

Posted: Oct 19, 2019 at 12:53 Quote
I'm interested. Would you mind posting a picture?

Posted: Oct 20, 2019 at 3:20 Quote
I've posted some details on the main 380 thread to keep it all together.

https://www.pinkbike.com/forum/listcomments/?threadid=177704&pagenum=52#commentid6781179

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