SV Front suspention issue

[Bibio]

before you do anything wrap a cable tie round one of the fork legs at the dust seal then check it after a few days/weeks to see how far up it has travelled.

oil does absolutely nothing to help with the weight on the bike, oil only controls the rate at which the spring inside the forks compresses/rebounds. yes a refresh of the oil will make it 'feel' better but wont stop a 'soft' spring from letting the forks bottom out.

the stock spring rate is that for someone at a weight of 8st so adding an extra 5st is putting the spring rate way over what it was designed for which in turn makes it compress easier.

you could be lucky and someone might have already changed the springs and if so then a change of oil might just be the ticket.

your already taking the forks off so why not do it right.

Yeah true! I seeeeee, yeah i mite as well then, thanks a lot for your help mate much appreciated!


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[embee]

I have a curvey also, and recognise exactly what you describe. As Bib says, you need springs.


I'm 12st and use 0.85 linear springs from http://www.ktechsuspension.com/
I'd say for you the 0.9 would be just right.


I'd also definitely recommend Fuchs/Silkolene "Maintain" RSF oil, it has good technical specs. Personally I found the RSF 7.5W works quite well with the stock fork internals, it is actually more comparable to most other 10W oils (see table here http://www.peterverdone.com/archive/lowspeed.htm showing actual viscosities ). You may find it a touch soft with those springs on rebound, but I'd suggest it as a start before going to the 10W version. If you still have the original oil in there it will be like grey dishwater now.

Nice one embee im going to look into it and hopefully get it sorted! Its the only downfall i can think of on this bike!


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[Blapper]

If it's ok with you guys I will passenger on Joe's thread: I find the front soft under braking AND harsh over bumps so I am intrigued by these 'emulators'. As I am only 12 stone, I'd like to keep light suspension, but have less dive under braking. Is this possible? I've done the up-rate on oil viscosity on other bikes and it just doesn't cut it for me.

Looks like we both mite need new springs and oil? lol


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[Bibio]

a mentioned by tom in post 2 get linear springs and under no circumstances get progressive no matter how inviting the price looks.

you will never stop dive on damper rod forks unless you use some mechanical method of doing so such as emulators but you can control the rate at which it does by using different oil viscosities without the emulators.

linear springs to match your weight.
silkoline maintain rsf 7.5wt oil.
weld and dress the rebound holes on the damper rods.

doing the three things above will satisfy most people.

[Blapper]

What are 'emulators' Bibio?

[Bibio]

Originally Posted by Blapper

What are 'emulators' Bibio?

https://www.youtube.com/watch?v=j3QYZEQoN_M

[Blapper]

Thanks, looks promising for when I refinish mine.