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FZR 400 RRSP Suspension Setup
Posted: Sun Jun 03, 2012 4:29 pm
by Woddy
Hello all, does anybody have some good base settings for track/race use on rrsp suspension please? Is the suspension sag still 30mm f&r on such a small bike? Also, are the rebound adjusters the flat head screws on the top of both fork legs and compression adjusters on the bottom/back of the fork yolks just trying to work out what is what? All info would be fantastic and appreciated aslong as I can improve on it slightly and know that I have my setup right or close enough I will feel alot more confident on the track! I have searched from time to time for a while now about settings on the 400 and found nothing.. Many thanks
Re: FZR 400 RRSP Suspension Setup
Posted: Sun Jun 03, 2012 10:40 pm
by hawksuspension
Compression is on the tops with rebound on the bottoms!!!
However that will vary depends if played with internals
Want to aim for 15mm sag on the rear ........with 18-22mm on the front for track use..
Set ups differ due to rider/spring/oil weight/tyres but if you work from them static sag settings you should be heading in the right direction and notice the change for the better

Re: FZR 400 RRSP Suspension Setup
Posted: Tue Jun 05, 2012 8:22 pm
by Woddy
Okey dokey thanks for that info!!!! What adjustment do the flat headed screws do on the top please as I am guessing the compression on the top like you say is the big 16/17mm (Cannot remember exact size) socket adjusters?
The current "rider" sag with me on (without leathers & helmet) is 33mm on the rear and 10mm on the front, bearing in mind though the bike was on the rear stand as I didn't have a helper, but suspension still operates ok on the stand but obviously not going to get a correct reading, but I wouldn't of thought it would be a million miles away as the rear wheel only sits a inch of the ground and the stand bobbins on the swing arm are in line with the tyre's contact patch if that makes sence?
I am not a fast rider and bike still feels like it wants to run wide on the exit of corners so I am hoping the suspension will help with that and give me confidence to improve my speed!
Thanks
Re: FZR 400 RRSP Suspension Setup
Posted: Tue Jun 05, 2012 10:44 pm
by hawksuspension
Top nuts on forks are preload.....screws are compression...bottom ones rebound
Adjust your sag with spring preload front and rear
you need to do all settings with the bike off the stands

Re: FZR 400 RRSP Suspension Setup
Posted: Tue Jun 05, 2012 11:11 pm
by Woddy
Ok thanks buddy
One last question - what "rider" sag measurements will I be aiming for?
Cheers
EDIT: I assume you ment by "static" sage being the bike under it's own weight?
Re: FZR 400 RRSP Suspension Setup
Posted: Thu Jun 28, 2012 7:05 pm
by Woddy
Back again..
What is the rider sag please??
Thanks
Re: FZR 400 RRSP Suspension Setup
Posted: Fri Jul 13, 2012 5:46 pm
by Hogdigerdy Dog
rider sag is with the rider on board and your kit on, although you need a couple of measurements for static sag first cos if you bounce the forks they'll come to rest in a different place than if you lower the bike gently due to stiction
put a cable tie round a fork leg, pushed down to the dust seal, then whenever you need to measure take it from the bottom of the cable tie to the top of the fork dust seal
for the rear take 2 fixed points ie rear subframe down to the top of the swinger, the further you get from the pivot point though, the greater the movement will be
have a read of this might help
http://www.mediafire.com/view/?iag66fdmcrvycy8
Re: FZR 400 RRSP Suspension Setup
Posted: Fri Jul 13, 2012 5:50 pm
by CMSMJ1
If you are going to a trackday then spend the £45 to get Colin at 100% suspension to set you up.
If you don't know what sag is then unless you know what you expect to feel from a change you will end up miles from anywhere and no setup that works.
I had my Mille setup (and I think that I know about setup) with COlin and it was superb.
Fresh fork oil of the correct weight, proper sag and then some tailored damping setup
Re: FZR 400 RRSP Suspension Setup
Posted: Fri Jul 13, 2012 5:55 pm
by Hogdigerdy Dog
or as above, pay someone who's job it is
there's loads of good suspension bods about, the one near me charges £60 and they will have an idea of a good starting point then fettle it down till it's right and worth every penny, it is a bloody art even if you have half a clue