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 23-06-08, 05:57 PM   #1
St0rmer66
Guest
 
Posts: n/a
Default Fork spring replacement.

Hi,

Looking at upgrading my fork springs on my curvey but not sure what to go for. I won't be putting any emulators on, so I don't need to worry about future changes. It'll probably be used solely on the road, maybe 1 or 2 trackdays tops(and I've never been on one before, so I won't reach the limits anyway).

So... Linear or Progressive?

Can get some Hagon progressives for around £55 or some linears for around the same hopefully (Ohlins are £85 but I'm sure there must be cheaper ones out there?).

I'm also wondering what fork oil is best to put in when changing the forks. I think I remember stock being 10w? So presumably something thicker than this...

I have a ZX10R shock which I'll be installing at or around the the same time.

I want to spend as little as possible really, but value for money is the main priority.

Thanks in advance .
  Reply With Quote
Old 23-06-08, 09:28 PM   #2
mattc
Guest
 
Posts: n/a
Default Re: Fork spring replacement.

Hi,

Front I have Hagon springs, 15w oil and dropped 10mm.
Back (was) ZX636 B1H shock.

That I reckon is the cheapest way to sort out your suspension, with good results. I've not tried it on a trackday, I suspect if you did lots it would show it's weaknesses.

Changing my rear shock to a ZX636 C1H which hopefully should be a bit better!!
  Reply With Quote
Old 23-06-08, 09:34 PM   #3
northwind
Moderator
Mega Poster
 
northwind's Avatar
 
Join Date: Jan 2004
Location: In the garage where I belong
Posts: 17,083
Default Re: Fork spring replacement.

I used Ohlins springs, mainly because I wanted an Ohlins sticker But they did the job very well. I've heard it said by assorted smart people that shortish forks like the SV has don't make great use of progressives, makes sense to me, but I've never tried them.
__________________
"We are the angry mob,
we read the papers every day
We like what we like, we hate what we hate
But we're oh so easily swayed"
northwind is offline   Reply With Quote
Old 23-06-08, 09:41 PM   #4
dizzyblonde
Da Cake Boss
Mega Poster
 
dizzyblonde's Avatar
 
Join Date: May 2007
Location: On a flying Horse
Posts: 9,992
Default Re: Fork spring replacement.

nowt wrong with the hagon progs that I have in suzy with 15w oil. To my personal requirements they are the dogs kahoonas, I've ohlins in the black with 15w oil, but i'm not sure I like those...I'm still to decide
__________________
Suzy, yellow 2001 SVS. Kitty, V-Raptor 1000, ZZR1400<<its my bike now Pegasus!

Hovis 13.8.75-3.10.09 Reeder 20.7.88-21.3.12
dizzyblonde is offline   Reply With Quote
Old 23-06-08, 09:50 PM   #5
rictus01
Member
Mega Poster
 
rictus01's Avatar
 
Join Date: Jul 2003
Location: South London
Posts: 9,799
Default Re: Fork spring replacement.

although linier should be better setup right for weight and riding style, in practise I've found progressive give a better feel most of the time, changing riding gear, tankbags,type of riding you're doing, but that's just me, anythign will be better than stock.

Oh and progressive come in two flavours, one has a two (tight/loose) sections and the other hasa progressively tightening spring (I prefer this type myself),

Generally I find 15w a bit heavy, but mixing a bottle of 10w & 15w together makes a good compromise.

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 23-06-08, 10:31 PM   #6
northwind
Moderator
Mega Poster
 
northwind's Avatar
 
Join Date: Jan 2004
Location: In the garage where I belong
Posts: 17,083
Default Re: Fork spring replacement.

Quote:
Originally Posted by dizzyblonde View Post
nowt wrong with the hagon progs that I have in suzy with 15w oil. To my personal requirements they are the dogs kahoonas, I've ohlins in the black with 15w oil, but i'm not sure I like those...I'm still to decide
I found 15W too heavy at 11 stone, so lor' knows how you must get on with it In winter it was like having iron bars for forks!
__________________
"We are the angry mob,
we read the papers every day
We like what we like, we hate what we hate
But we're oh so easily swayed"
northwind is offline   Reply With Quote
Old 23-06-08, 10:32 PM   #7
Tim in Belgium
Guest
 
Posts: n/a
Default Re: Fork spring replacement.

Got ohlins linear and 15w oil in the front of mine, weigh 12 1/2 stone in the semi buff and with a Hagon rear shock absolutely love the set up on track and road, way better than stock, but I'm no expert and the Sv is the only bike I've ridden in anger..
  Reply With Quote
Old 23-06-08, 10:53 PM   #8
St0rmer66
Guest
 
Posts: n/a
Default Re: Fork spring replacement.

Thanks for the replies so far guys and gals!

I weigh just about 11 stone without leathers on, so not that much really. Think I might go for the progressives with 10w oil by the sounds of it... could always switch to 15w (or 12.5 from a mix?) if it's still too soft but I'm still not 100% sure on this (few conflicts of opinion it seems!). Gives me a fair bit of flexibility then without it being too hard for normal use (as I say, most of the time is spent on the bumpy A and B roads, not a nice flat track!).

Northwind you are the one who has inspired me to upgrade the suspension . I assume you are the same one from OcUK?
  Reply With Quote
Old 23-06-08, 11:29 PM   #9
plowsie
Guest
 
Posts: n/a
Default Re: Fork spring replacement.

So at around 18 stone do you all recommend iron bars as forks for me

Seriously though, what is best way to go for me on the SV...? Thats the one thing I miss from the CBR and the Black SV...
  Reply With Quote
Old 23-06-08, 11:52 PM   #10
northwind
Moderator
Mega Poster
 
northwind's Avatar
 
Join Date: Jan 2004
Location: In the garage where I belong
Posts: 17,083
Default Re: Fork spring replacement.

Quote:
Originally Posted by St0rmer66 View Post
Northwind you are the one who has inspired me to upgrade the suspension . I assume you are the same one from OcUK?
Guilty as charged
__________________
"We are the angry mob,
we read the papers every day
We like what we like, we hate what we hate
But we're oh so easily swayed"
northwind is offline   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
Fork spring replacement... Forgot to measure travel beforehand. Troy SV Talk, Tuning & Tweaking 10 28-07-08 09:53 PM
Shock spring replacement... Gnome SV Talk, Tuning & Tweaking 5 30-06-07 05:55 PM
Fork Oil and Spring Overhaul Kit shelleyamy SV Talk, Tuning & Tweaking 14 27-06-07 07:48 PM
Fork Spring Upgrades Dicky Ticker The Essex Lounge 8 20-02-06 05:28 PM
Fork spring question.... Junior SV Talk, Tuning & Tweaking 4 07-01-05 09:20 AM


All times are GMT. The time now is 08:46 AM.


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