Öhlins produce some of the best most tuneable shocks on the market, however they do require some special servicing. Davide Bagnoli master bike mechanic and öhlins specialist takes us through some of the steps when doing a coil spring rear shock service.

Demount the Shock
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Davide removes the shock from the bike.

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The shock now removed.

Strip Down

Davide now begins the strip down process.IM2_1727

A shock dismantle requires special tools and experience.

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Removal of the spring first.

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The piggy back chamber needs deflating and piston removal.

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A solid work space is used for the next processes.

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The main piston is removed, here it is in good condition.IM2_1745

Öhlins shocks need servicing as after a while they do create an oil reservoir that has too much air in it and oil flow becomes less efficient.

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Both piston chambers are checked and cleaned.

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The compression piston is removed.

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Here we have the compression piston on the right and return piston on the left. The seals and rings are now checked.

Service Phase

Davide now goes through the small parts and checks and replaces the components that are wear parts or tune parts.IM2_1766

Ready to service the shock. Davide has some special clamp parts.

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The return piston is inspected and tuned.

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All the parts are removed and checked.

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Once checked they are degreased and remounted, with new seals applied and new grease.

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The shock is rebuilt.

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The shock is now connected to the vacuum pump and a special setting is made to the piggy back removing all air from the system. This is essential to make the shock work correctly.

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The piggy back is now charged with the correct pressure.

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Piggy back compression test.

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Davide now check how the shock moves.

Remounting The Shock

Davide remounts the shock and does a static test.

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Ready to go!

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Back on the bike the bolts are checked and set, there should be no play in the system.

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The bike is now ready and the sag is checked.

Conclusion

If you have a high performance shock it is essential to service it properly and regularly.

Video:- Davide shows us the now fixed shock in action.