Author Topic: Fork Oil Weight Comparison Table  (Read 3945 times)

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August 11, 2015, 02:56:27 PM on

Offline Bixxer Bob (OP)

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I was looking around for fork oil after my interesting time in France, and found that using the Weight Number as a comparison between brands is meaningless. For instance my Girly should have Kabaya 10W which in the linked table has a viscosity of 37.2. Other brands 10W vary in viscosity between 32 and 47  :bug_eye  Good luck with getting it to handle as it should with those numbers :icon_lol:

I'm going to try Silkolene Pro RSF 7.5W as its very close at 37.19.

There's lots out there, but here's the table I used:

https://transmoto.com.au/comparative-oil-weights-table/
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August 11, 2015, 03:22:13 PMReply #1 on

Offline Chris Canning

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Have always used Silkolene 15wt never used anything else and the quantity to taste,just don't expect a smooth ride on a cool day for the first 30 miles till the oil has warmed up.

For those with the old forks I use 720cc .

August 11, 2015, 06:38:31 PMReply #2 on

Offline Bixxer Bob (OP)

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720cc is what my book says to Chris.  Which Silkolene 15W?  There's 48.45 and 92.95 which reads as  "stiff-ish" and "treacle" :bug_eye  compared with the recommended 37.2.

I guess it's the 48 one, which is still quite a bit stiffer than stock, but then again, you'd need that.
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August 11, 2015, 06:46:59 PMReply #3 on

Offline Bixxer Bob (OP)

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I've just used the Silkolene tool (here :  http://fuchsmoto.lubricantadvisor.com/default.aspx ) and it comes up with what I ordered and which is near the original spec.  I aknowledge you need stiffer forks Chris hence the 15W but nice to know I made the correct choice by two different paths.
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October 26, 2016, 05:53:06 PMReply #4 on

Offline benebob

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I used RF 15w last time, liked how it road but 15-18k later when it came out it was filthy and somewhat grey.  I fear it started some early wear of my forks.
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