Fork Spring(s) Length? - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 Old 10-02-2008, 04:22 PM Thread Starter
4th Gear
 
tomatocity's Avatar
 
Join Date: Sep 2006
Location: Sacramento, CA
Posts: 2,453
Fork Spring(s) Length?

I am looking for the length of the stock fork spring and the length of the Progressive fork spring. Thanks.

Tim

2005 KLR 685
2015 Yamaha Super Tenere ES, 5/23/2015
2012 Yamaha Super Tenere; Purchased 7/30/2011; Sold 5/23/2015
tomatocity is offline  
Sponsored Links
Advertisement
 
post #2 of 13 Old 10-03-2008, 12:00 PM
 
Join Date: Apr 2008
Posts: 83
I'm not sure but a shop manual should give you the length of the stock springs. Progressive should be able to give you the length of their springs. Hope this helps you out.
waverlyhagood is offline  
post #3 of 13 Old 12-04-2008, 06:06 PM
 
Join Date: Dec 2008
Posts: 22
stock fork spring length

I called Cannon Race Craft of Oklahoma City, they were refered to me by a local dealer for racetech springs. the rep I spoke to quoted the "free" length as 494mm

you can call 'em, look up their # online ( I cannot find it at the moment )

by the way, why do you wish to know?
are you upgrading springs as well? I've been looking into it, but I've decided against progressive wound springs and there just aren't that many companies offering them for the KLR. Cannon Race Craft WILL make them, but they want 175.00 for the set.

I'm considering replacing my 25k miles springs with new stock springs and investing the $$$ in Cartrige Emulators instead.

Cheers!
sveltenshein is offline  
 
post #4 of 13 Old 12-05-2008, 02:05 PM
2nd Gear
 
kent soignier's Avatar
 
Join Date: Nov 2007
Location: north Ga. USA
Posts: 272
fork springs length?

As a Chassis and Suspension Specialty shop and a long time (since 1996) Racetech Center I feel qualified to comment.

First: the RT Emulator kit is a very good upgrade for any damper rod fork. if it is properly installed and tuned.

Second: replacing springs with 25k mi on them probably is a waste of $$$ as they don't wear out. ( I can hear pundits disagreeing) If you were to extracxt them and rate them you would see they still rate about .4kg/mm as new ones should. Though, unless you weigh less than 150lbs, you will benefit from firmer springs, but not new stockers.

Third: Progressive springs are not as good an answer as many riders think. Certainly not good as lightly preloaded, correct Straight Rate (for your weight) springs will be.
Most progressive springs we remove to replace with str8 rates, are severely over-preloaded. Commonly we find an inch (or more) of preload on the progressives, you have coil bound the soft travel portion of the springs and are left with the firmer rate. This negates the progressiveness and leaves you with over preloaded straight rate springs.
If you have more than about 15mm of prelaod on a spring, you really need heavier rate springs.


The '08 klr fork spring is 365mm long with 34mm o.d and a rate of .400kg/mm.
Feel free to contact me for more info, parts, or service
706 253 1148

'08 KLR650,
'72 BMW R75/5 (Col. Klink),
'02 KTM 400 E/XC,
'05 ktm 125 sx (for sale)

"Hey, are you okay? Can you get up?
I thought you said you could ride"

All the best
Kent Soignier
www.gmdatl.com
the str8ner
kent soignier is offline  
post #5 of 13 Old 12-05-2008, 02:29 PM
 
Join Date: Dec 2008
Posts: 22
more info. Please...

Kent, thanks for your input! I've been searching for str8 rate springs for this bike, but have only found 2 options: stockers and special order from Cannon of Oklahoma City ( and they want 175.00 for the pair ).

I'm definitely doing emulators once I can locate all the hardware, but I'm hoping I can do better than 300.00+ for parts alone.

I've got a # for someone @ racetech that may be able to help, but can you confirm o.d. and "free" length of the springs for my bike? ( '89 KLR )
sveltenshein is offline  
post #6 of 13 Old 12-05-2008, 03:21 PM
2nd Gear
 
kent soignier's Avatar
 
Join Date: Nov 2007
Location: north Ga. USA
Posts: 272
fork springs and emulators

sveltenshein, I will look into it for you. I am pretty sure I can get you springs and an emulator kit for under $300. I have a call into my contacts at cannon.
Since racetech has no info on those springs.

I will keep you posted

'08 KLR650,
'72 BMW R75/5 (Col. Klink),
'02 KTM 400 E/XC,
'05 ktm 125 sx (for sale)

"Hey, are you okay? Can you get up?
I thought you said you could ride"

All the best
Kent Soignier
www.gmdatl.com
the str8ner
kent soignier is offline  
post #7 of 13 Old 12-05-2008, 03:46 PM
2nd Gear
 
kent soignier's Avatar
 
Join Date: Nov 2007
Location: north Ga. USA
Posts: 272
fork springs, and emulators

sveltenshein,
Okay, I have spoken with the folks at cannon, you're right, the retail on special springs is $175. they are special because most springs that long are larger in diameter.
I can sell them to you for $145, If, you buy from us; the Racetech Cartridge Emulator kit #fegv 3801 @ $169.99=$314.99 plus shipping.
It will take a week or so to have the springs made, and I can have them drop shipped to you.
I will need your weight, without gear, to select the rate for you.
You are welcome to call me at 706 253 1148

'08 KLR650,
'72 BMW R75/5 (Col. Klink),
'02 KTM 400 E/XC,
'05 ktm 125 sx (for sale)

"Hey, are you okay? Can you get up?
I thought you said you could ride"

All the best
Kent Soignier
www.gmdatl.com
the str8ner
kent soignier is offline  
post #8 of 13 Old 12-11-2008, 09:15 PM
 
Join Date: Dec 2008
Posts: 22
Straight-Rate...

Kent, I spoke to one of your techs on Monday and left a message for you at the office ( w/ my # ). I'm ready to get the ball rolling on the front springs (perhaps rear shock later) and would like to discuss a few details.

I'll try you again tomorrow or you can reach me most of the day.
Thanks!
sveltenshein is offline  
post #9 of 13 Old 12-29-2008, 11:18 AM
 
Join Date: Dec 2008
Posts: 22
springs

Hey Kent,
hope you're enjoying the holidays and perhaps getting plenty of rides in

any word on stock spring rate?

I've been working on other maintenance stuff, but plan to dismantle the forks this week.

no rush, just let me know if you find out anything.
Thanks!
sveltenshein is offline  
post #10 of 13 Old 01-02-2009, 10:56 PM
2nd Gear
 
kent soignier's Avatar
 
Join Date: Nov 2007
Location: north Ga. USA
Posts: 272
yes, we rated stockers in a '02 at .4 kg/mm, very soft, and the same rate as my '08

thanks, the holidays are going great, I hope your's is too.

'08 KLR650,
'72 BMW R75/5 (Col. Klink),
'02 KTM 400 E/XC,
'05 ktm 125 sx (for sale)

"Hey, are you okay? Can you get up?
I thought you said you could ride"

All the best
Kent Soignier
www.gmdatl.com
the str8ner
kent soignier is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Fork Spring spacers gunny 1987 to 2007 Wrenching & Mods 25 03-30-2010 11:16 PM
Tension spring Garyp138 1987 to 2007 Wrenching & Mods 6 02-15-2008 09:56 AM
Doo Spring Tension chwhnd 1987 to 2007 Wrenching & Mods 3 10-13-2007 11:09 AM
Spring Fling in WV KayLR Upcoming Tech Days & Group Rides 51 05-10-2007 10:38 PM
torsion spring RCTraveler 1987 to 2007 Wrenching & Mods 3 01-22-2007 06:03 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome