Preload and Rebound

TripleT

TripleT

TripleT

Soldato
Joined
24 Oct 2002
Posts
9,654
Location
Manchester City Centre
Hi,

Just double checking, if I'm heavier than what the manufactures settings were set for then I should make the Preload stronger and the rebound damping force larger. That right?

Just tinkering and noticed that the previous owner had it set very lower, he wasn't tiny either so not sure why.

I'm not experienced enough to play around properly but figure I just have it set correctly and work from there.

Cheers
 
just preload I think

rebound and compression depends on your riding,fast riding harder,slow riding softer

far as im aware
 
Without going into massive detail about suspension settings, the best thing you can get done is have the rider sag with full gear on set at 30-35mm (good for general road riding) on the front and rear then adjust the dampening from there, starting at the middle of the range for both compression and rebound.
This will mean the shocks are working in their optimal middle travel range with you on the bike, not topping or bottoming out when braking, accelerating or going over bumps.

If you bought the bike from a good dealership then they may offer a free adjustment if you ask, if not they may charge 30-60 quid for a full setup of everything with you on the bike.

If you want to do it yourself then it is best to have a friend or two help with holding the bike and measuring with you on it.
 
^JP^ said:
Without going into massive detail about suspension settings, the best thing you can get done is have the rider sag with full gear on set at 30-35mm (good for general road riding) on the front and rear then adjust the dampening from there, starting at the middle of the range for both compression and rebound.
Click to expand...

I agree, except I would start by using the standard damper settings in the bikes handbook. Often the optimal settings are nowhere near the middle of the range.
 
Dogbreath said:
I agree, except I would start by using the standard damper settings in the bikes handbook. Often the optimal settings are nowhere near the middle of the range.
Click to expand...

Yeah fair enough, was just remembering what I was told regarding my bike :)

Although my handbook is pretty bad (I think Italian to English didn't translate all that well) as it gives settings for the rear shock that you cannot adjust it to. For example, rear compression to 3.5 turns out from fully in and it will only turn 3 turns out!
 
Adjust preload to get correct sag settings for your weight. Ideally you'd want suitable weight springs in but for the average rider this will do.

As said adjust the others based on riding style if need be.
 
Cheers all, the suspension on the Z750 is pretty basic and budget, I'm just going to run it at stock and see how it is. 99.9% of my riding is boring commute too sadly so rarely get chance to push on (I barely have to turn!).
 
Might be worth checking if any bike places close do suspension setup? only about £50 usually.

And as everyone has said always set the preload/sag first, just guessing the preload and then adjusting rebound to compensate is never a good idea as they will fight against each other and feel even worse.
I know this because I have been to lazy to set the sag on my Ohlins rear and it feels horrendous :D
 
Wouldn't mind getting mine set up for me. Can anyone recommend a place? I'm in Warwickshire but wouldn't mind riding out a bit to a decent shop. I wouldn't trust my local bike shop or my local Triumph dealer to do it.
 
Last edited:
no idea,he did mine but he didn't do the sag,he said that was fine

but tbh mine could do with new fork springs as its still not right
 
Yh,it just feels too soft wallowey,its a 98 bike so could probably do with uprated fork springs now

And yeah Craig he was a nice chap,after he set it up it did feel better
 
It's not too difficult to set preload/sag with the help of a pal. Remember to bounce on the suspension before taking measurements, you can also warm the suspension up before doing it if you fancy.
 
Craig321 said:
Wouldn't mind getting mine set up for me. Can anyone recommend a place? I'm in Warwickshire but wouldn't mind riding out a bit to a decent shop. I wouldn't trust my local bike shop or my local Triumph dealer to do it.
Click to expand...

K Tech in Coalville or RJS at Mallory, I used to race with the guy at RJS and the guy he learned his trade from used to tune my race bikes.

He has a lot to do with the TT and BSB bikes.
 
You must log in or register to reply here.
Back
Top Bottom