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Atf In A Sherco ?


cabby
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The suitability of ATF for Gasgas gearboxes is open to debate.

I would be inclined to stick with 75w gear oil

Interestingly the works Shercos are now separating the gear and primary transmission oils so they can use a different grade in the gearbox to that used in the clutch

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I have always used atf in beta, gas gas and now the sherco, It's cheaper and more stable for the clutch if you are the sort of rider that needs to slip and launch. It's also manageable for clubman type riders too. Maybee a bit snappy for a raw novice.

They have split the oils in some riders factory bikes now and they use a modified enduro heavy duty clutch with a specially made clutch casing, Interesting to know but only needed for world championship sections. The reason for using different oils is not too complex but means they can run different levels and types where needed in either casing.

The standard sherco clutch is very good and even the factory modified clutches over the last 2 years are excellent.

So back to the point ATF in the 2011 on bikes is fine, As for the older ones check with others first but I can not see a problem with it.

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Don't do it!!! :closedeyes:

Why? A little more input please Neo.

Is there somthing I'm missing? I've been running ATF for 10 years in modern trials bikes with no problems even in the Gassers with DP clutch packs that everyone swore blind that they would disintergrate with ATF.

If there is a problem with running ATF, other than making the action a bit sharper, I would like to know, I'm not pre doubting your knowlege just curious.

I know it can attack seals and friction materials in older bikes especially if water gets in there too and mixes with the ATF.

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Hi Steve,

Well apart for the sharper clutch action it soaks into the clutch plates. Later (when you want a smoother clutch lol!) you'll have to replace those plates to give you back a smooth action.

If none of this is a big deal then no worry but I've had quite a bit of success running Synthetic 5w30 :beer:

Castrol 5w30 Edge Sport ... or ...Nulon 5w30 "Long Life Diesel and Petrol Oil"
Riding most days over 3 years I've proved that I get minimal gear wear when I use these oils (no silver or grey in waste oil) so I'm sticking with these :icon_salut:
Best of balance either way.
Neo
Edited by neo
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