Suspension adjustment

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RODOLFO

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Have a V4S 19

I have been adjusting the suspensión during the years

Recently i extended the rear shock 2 mm

And worked good, bike hold the line better while going out of the turn

so i raised another 2mm

worked great too


Now, the question,

has anyone driopped the front forks a few millimiters to ríase the front?
 
Raising the back reduced rake trail caster and wheelbase right?

Wouldn’t raising the front increase all those and bring back the under steer that you raised the back to get rid of?
 
I raised my front, forks are flush with the upper triple clamp. I also lowered my rear a couple threads on the ride height nut.
Stock the bike turned in too quick for my liking.

If you do raise the front that will offset to a degree the change you made on the back.
 
Thanks,

yes, i believed raising the front, would counter, what i did ok the back

And i am really happy with how it improved, so better off leaving it like that.

Just wanted to hear opinions, of what were the benefits of raising the front
 
For me raising the front leveled off the bike and made it more comfortable for me keeping less weight on the arms.
 
I never adjusted fork height. I assume you just use a head stand, loosen everything up, move it to the desired height and wrench it tight again. Are there any pitfalls or things to be aware of when doing this?

As is the bike does feel a little too squirrely, this sounds like it would be the ticket.
 
bp_SFV4 said:
I never adjusted fork height. I assume you just use a head stand, loosen everything up, move it to the desired height and wrench it tight again. Are there any pitfalls or things to be aware of when doing this?

As is the bike does feel a little too squirrely, this sounds like it would be the ticket.
Click to expand...

It’s easy and ideally you have a head stand but you can do it on the ground with the wheel still on, I’ve done it multiple times with no stand.

Just loosen upper and triple clamps, loosen clip on and set it where you want and tighten back up. Make sure both forks are at the same height.
 
bp_SFV4 said:
I never adjusted fork height. I assume you just use a head stand, loosen everything up, move it to the desired height and wrench it tight again. Are there any pitfalls or things to be aware of when doing this?

As is the bike does feel a little too squirrely, this sounds like it would be the ticket.
Click to expand...

Where does the bike feel squirrely? (hard braking before a hairpin?)
 
interesting pani seems very stable to me other than hard braking before hairpins where it seems like the front is light despite being on the brakes. Might be the semi active suspension doing something
 
CSV4 said:
interesting pani seems very stable to me other than hard braking before hairpins where it seems like the front is light despite being on the brakes. Might be the semi active suspension doing something
Click to expand...
No, it’s the thin oil, light damping, and light springs (for me at least at 180lbs). It is not the active electronics.
 
I to have been struggling with my V4 in holding a line and not running wide on the exit of the turn. So many factors go into what makes this happen and how to resolve, i.e. ride height, tire size, dampening settings, etc all affecting geometry. For my last outing, I raised my fork tubes 5 mm (total 15mm showing) in an attempt to make it better. Rear shock is already at 315mm length. Raising the forks, along with some dampening changes, mainly rebound, seemed to really make a difference. I'm curious to see if i've lost any stability on the brakes at a place like COTA turn 12. We'll find out in June!
 
cafecorseduc said:
I to have been struggling with my V4 in holding a line and not running wide on the exit of the turn. So many factors go into what makes this happen and how to resolve, i.e. ride height, tire size, dampening settings, etc all affecting geometry. For my last outing, I raised my fork tubes 5 mm (total 15mm showing) in an attempt to make it better. Rear shock is already at 315mm length. Raising the forks, along with some dampening changes, mainly rebound, seemed to really make a difference. I'm curious to see if i've lost any stability on the brakes at a place like COTA turn 12. We'll find out in June!
Click to expand...

Try going the other way with the forks. Sounds counter intuitive, but you may be surprised by the results. The only way is to test it yourself though...
 
Again, this worked, but not a bad idea to go the other way and verify at some point. My focus now is getting the rear settled down on exit.
 
cafecorseduc said:
Again, this worked, but not a bad idea to go the other way and verify at some point. My focus now is getting the rear settled down on exit.
Click to expand...
Assuming your preload is set then rebound may be your issue, especially if you have a few thousand miles on the shock since the oil is thinned out and you probably don’t have enough damping left to control the rebound in it.
 

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