SV650.org - SV650 & Gladius 650 Forum



SV Talk, Tuning & Tweaking Discussion and chat on all topics and technical stuff related to the SV650 and SV1000
Need Help: Try Searching before posting

Reply
 
Thread Tools
Old 10-09-09, 08:14 AM   #1
LK-SV
Guest
 
Posts: n/a
Default Preload settings... yet again.

Sorry, I know its an age old topic, but I would appreciate a quick nudge in the right direction for now, as I haven't got the chance to go through measuring the lag at the mo.

Basically, if possible, i'd like to know if its possible to get a good starting position based purely on my weight and bike ....

Bike is set up to standard settings at mo (including tyre pressures etc).....

Bike - SV650S SK4
Me - 5'8 & 12 stone without gear
Ride - 30 miles round trip commute, mostly town work but one stretch of 60mph dual carrageway ..

So, I'm guessing wind a little preload on at both ends ??

Thanks .....
  Reply With Quote
Old 10-09-09, 08:18 AM   #2
drag
Guest
 
Posts: n/a
Default Re: Preload settings .... again !!!

Get the service manual and set it as per it came out of the garage, then go from that point.
  Reply With Quote
Old 10-09-09, 08:19 AM   #3
rictus01
Member
Mega Poster
 
rictus01's Avatar
 
Join Date: Jul 2003
Location: South London
Posts: 9,799
Default Re: Preload settings .... again !!!

if you've standard springs fitted, max on the front, one click off max on the rear.

Oh and it's "sag" you need to set, not lag (unless you want to be late that is... ).

Cheers Mark.
__________________
Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!
rictus01 is offline   Reply With Quote
Old 10-09-09, 08:26 AM   #4
LK-SV
Guest
 
Posts: n/a
Default Re: Preload settings .... again !!!

Thanks Rictus ..... kinda what I was thinking ...

Was just concerned that on standard settings, it seems kinda harsh over the bumps, and didn't want to make it worse ..... but I suppose pre-loading actually gives the suspension MORE to work with ??

Oh yeah - Sag !! oopppss !!
  Reply With Quote
Old 10-09-09, 08:34 AM   #5
rictus01
Member
Mega Poster
 
rictus01's Avatar
 
Join Date: Jul 2003
Location: South London
Posts: 9,799
Default Re: Preload settings .... again !!!

actually it doesn't, just moves the range a bit, but mainly the standard springs are rated for someone about 9-10 stone max, so I'd be looking at saving £80 or so and changing them at some point.

Cheers Mark.
__________________
Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!
rictus01 is offline   Reply With Quote
Old 10-09-09, 08:45 AM   #6
madness
Guest
 
Posts: n/a
Default Re: Preload settings .... again !!!

I set up my sag last wekend. When I first measured it, I had 50mm sag on the front and 35mm sag on the back. About 30mm sag at both ends is recommended for the road. After screw the preload adjusters on the forks fully in, the front sag was 35mm. That gave me 35mm at both ends so I tried it out at that. The bike was awful/harsh on normal bumpy roads so I gradually reduced the front preload until it felt ok, which was back to where it had originally been. The moral is, dont get hung up on sag. Set it so the bike feels good to ride.
  Reply With Quote
Old 10-09-09, 09:04 AM   #7
yorkie_chris
Noisy Git
Mega Poster
 
yorkie_chris's Avatar
 
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
Default Re: Preload settings .... again !!!

Quote:
Originally Posted by LK-SV View Post
Thanks Rictus ..... kinda what I was thinking ...

Was just concerned that on standard settings, it seems kinda harsh over the bumps, and didn't want to make it worse ..... but I suppose pre-loading actually gives the suspension MORE to work with ??

Oh yeah - Sag !! oopppss !!
It moves the starting point, so more preload will give you more travel to use up before bottoming.

It could also be the stock lack of damping feeling harsh
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat
yorkie_chris is offline   Reply With Quote
Old 10-09-09, 09:28 AM   #8
Luckypants
Moderator
Mega Poster
 
Luckypants's Avatar
 
Join Date: Jul 2003
Location: Nr Ruthin
Posts: 7,079
Default Re: Preload settings .... again !!!

Quote:
Originally Posted by madness View Post
I set up my sag last wekend. When I first measured it, I had 50mm sag on the front and 35mm sag on the back. About 30mm sag at both ends is recommended for the road. After screw the preload adjusters on the forks fully in, the front sag was 35mm. That gave me 35mm at both ends so I tried it out at that. The bike was awful/harsh on normal bumpy roads so I gradually reduced the front preload until it felt ok, which was back to where it had originally been. The moral is, dont get hung up on sag. Set it so the bike feels good to ride.
Errr no, you are probably used to the saggy soggy front end and have got used to riding it like that. Having it set right may have felt harsh, but as the springs are the same it should be sprung the same. It feels different and that is what you didn't like. With 55mm sag on the front, you must be bottoming out the forks on bumps and / or braking?
__________________
"Your Viffer sounds like it is raising hell! Spot on." - Witchery 17/4/08
Snow Plough Appreciation Society - Member #3

Luckypants is offline   Reply With Quote
Old 10-09-09, 10:00 AM   #9
yorkie_chris
Noisy Git
Mega Poster
 
yorkie_chris's Avatar
 
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
Default Re: Preload settings .... again !!!

That would probably be because there is no damping!
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat
yorkie_chris is offline   Reply With Quote
Old 10-09-09, 10:04 AM   #10
LK-SV
Guest
 
Posts: n/a
Default Re: Preload settings .... again !!!

Quote:
Originally Posted by yorkie_chris View Post
That would probably be because there is no damping!
So, let me get this straight (sorry)

Altering the preload should affect the ride quality .... only the associated ride due to ride heights ??
  Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sag and preload etc AndyBrad SV Talk, Tuning & Tweaking 12 20-06-09 06:59 PM
What do i need to convert the 1999 (no preload adjusters) to having preload adjusters and progressive springs. sv_rider1990 SV Talk, Tuning & Tweaking 12 11-07-08 05:15 PM
Preload Settings Giffer2 SV Talk, Tuning & Tweaking 5 11-08-07 04:25 PM
fork preload steveg SV Talk, Tuning & Tweaking 3 08-03-06 07:33 AM
Suspension preload for 2 up STRIKER SV Talk, Tuning & Tweaking 0 22-02-06 06:46 AM


All times are GMT. The time now is 08:54 AM.


Powered by vBulletin® - Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.