Horizons Unlimited - The HUBB - Ohlins Rear Shock Help

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Ohlins Rear Shock Help

Hello all,
Sorry to ask for more help but I need some info on setting up the Ohlins rear shock on my Yamaha TT600R, I have had a couple of workshop manuals sent to me via email, sadly the TT600R one has the suspension section missing and the other which relate to a newer model only shows the settings for the Yamaha rear shock.
I need to set the preload but have nothing to start from, it appears the previous owner had set it with the collar at its furthest point so least preload possible, the later manual talks about measuring the spring from seating point to seating point with a guide of:
217mm Minimum Preload
211mm Standard Preload
205mm Maximum Preload

Can anyone help with the Ohlins settings.

Cheers Glenn

Quote:

Originally Posted by gteps (Post 473770)

when my cousing bought a ohlins rear suspension for his rgv he emailed his weight, height and his driving style (only used in track)... I reckon u could do the same thing... why don't you give that a go with your specs that u spotted?

Ride and adjust as you like it best! You never get a offroad that is good onroad and offroad with same set up, find a middleway if you like riding both places.

common practice is to set the preload so with you on the bike it sags about 30% of the total wheel travel.

so lift the rear, measure distance from axle to seat, if the the rear travel is, say 180mm (cant remember the spec...) then you need to adjust preload to sit at -60mm from that distance

I am with Turboguzzi. Set the shock up using sag.

Youtube has some useful videos on that, here is an example.
https://www.youtube.com/watch?v=fRXmJeRQCRw

Then fine tune for your own preference.

Thanks for your help gents, I will try getting in touch with Ohlins and check out the vids on YouTube :-)

Well I've been in touch with FTR suspension who are Ohlins dealers in the UK, I have to say their technical department were very helpful, I've found out I have an up rated spring from standard which is good as I'm larger than the average person and they have given me all the standard settings for the compression and rebound, thanks again for all your help.

As others have said, measuring the sag is the way to go.

Static sag: approx 10% of rear wheel travel

Rider sag: approx 30% of rear wheel travel, measure with rider wearing full gear, tools, spares plus any additional fuel & luggage etc if on an overland trip.

Don't be tempted, as many are, to use the preload adjuster purely as a ride height adjuster, you'll never get the suspension working correctly if you do.

Hows your shock different from the standard one?

And could you email me the setting you got?