Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Suspension

Suspension Suspension and Handling Forum - bouncy bouncy!


Thanks Tree1Thanks
  • 1 Post By tourist
Reply
 
LinkBack Thread Tools Display Modes
October 18th, 2017, 03:11 PM   #1
Junior Member
 
Joined: Oct 2017
From: United States

Posts: 8
Thanks: 1

I Ride:
08 spring rates and revalve recommendations

Hey guys
I picked up an 08 FE450 last week. Im looking for advice on spring weights. Im 6'4" and 230 lbs. What do you guys recommend for front and rear spring weights? What is the crossover KTM rear spring part #? Also who do you guys recommend to do a revalve front and rear.
Fire1998 is offline  
 
October 19th, 2017, 01:08 AM   #2
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 15,136
Thanks: 351

I Ride:
well you need .050-.052 on the front. on the rear you're looking at a straight rate 104-110 something like that?

as for a revalve, the rear is good to go really. but the front is a mess. if you can remove the base stack and the midvalve and send them to me while you order the springs then I can do them relatively cheaply. IF you are a competent mechanic.

I raced with this exact fork for 13 years and did all my own suspension. try and get the SKF seals as well.

Taffy
Taffy is online now  
October 21st, 2017, 08:20 AM   #3
Member
 
Joined: Jan 2011
From: N. Cal

Posts: 67
Thanks: 4

I Ride: fe450
Contact Jeff Slavens- https://slavensracing.com/about/contact/
He'll set you strait.
I'm a little heavier than you, on my 07 fe450 I ran 50's in the front and a factory connection progressive wound 9.0~11.5 on the rear.
I prefer the progressive rear for trail riding, seems smoother riding over trail trash..
If you need a KTM crossover search, springs from an 06 450exc will fit.
lesjive is offline  
October 22nd, 2017, 06:22 AM   #4
Senior Member
 
tourist's Avatar
 
Joined: Nov 2012
From: Iceland

Posts: 2,133
Thanks: 647

I Ride: 1 Berg, 1 Zook
If you’re interested, you can do the revalve yourself - incl. the valve stack design - with the help of Shim Restackor: Shim ReStackor, Finally software to tune a shim stack

It’s a damping fluid dynamics simulator, iow it simulates what’s going on inside the dampers given a certain valve stack and setup.

This is nearing the deep end of things, but still perfectly attainable for mortals (I did my DRZ front and customized a community stack. Went to lighter oil but still stiffened up the front Kinda cool.)
Thanks from TomTom
tourist is offline  
October 23rd, 2017, 01:22 AM   #5
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 15,136
Thanks: 351

I Ride:
the problem with these forks is NOT the shimstack per se. it is whole lot more. the piston design is wrong.

Taffy
Taffy is online now  
October 23rd, 2017, 05:28 AM   #6
Senior Member
 
tourist's Avatar
 
Joined: Nov 2012
From: Iceland

Posts: 2,133
Thanks: 647

I Ride: 1 Berg, 1 Zook
For what it's worth, you can simulate and redesign EVERYTHING with Shim Restackor, including simulating custom piston ports and geometry and having them CNC'd out.
tourist is offline  
October 23rd, 2017, 09:03 AM   #7
Junior Member
 
Joined: Oct 2017
From: United States

Posts: 8
Thanks: 1

I Ride:
Went to race tech and they only show a 2008 Ktm 450 for rear spring rate. Ive been looking on ebay but cant figure out exactly what I need for rear spring. Do I need a progressive or straight rate spring? Up front ive found .50 springs but for rear Im very confused. Any help would be appreciated! Slavens is retired on revalving. Any other suggestions for a revalve?
Fire1998 is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Suspension

Tags
rates, recommendations, revalve, spring



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
calculating spring rates????? johny Suspension 1 January 28th, 2012 08:39 AM
Te 300 standard spring rates?? johny Husaberg 2 January 1st, 2012 12:42 AM
Recommended spring rates for me? dazzabb Suspension 2 October 17th, 2011 01:53 AM
spring rates for fe 570-09 johny Husaberg 1 July 20th, 2009 10:36 AM
Anybody know the spring rates for the forks of the 02Fx470E? 70marlin Suspension 12 June 28th, 2004 03:14 AM


Facebook Twitter Google+ RSS Feed