4CS fork springs

[Zeal]

Anybody have some 4.4 4CS fork springs? I have 4. 6 springs to trade as an option to cash.

Also looking for a 5. 4 rear spring.

[erniebearskin]

I have stock 4cs springs, whatever weight those are....

[Zeal]

Im pretty sure the fe 350 comes with 4. 6 springs but I'm not sure. I thing both the ktm and husky 250s (whether 4t or 2t) have the spring rate im looking for.

[malcolmzilla]

I have stock 14 TE250 takeout springs.

[Braap791]

I have Factory Te 300 Fork Springs and Shock Spring sitting in my tool box at home.

[RJHenry]

At risk of moving this topic off of Want Ads...

I have been working on respringing an FE250 for the last couple of days and my various conversations have led me to these findings:
Fork:
- My 2014 Husaberg FE 350 is "stated" as having 4.4 N/mm stock but both tested soft - one at 4.2 and one at 4.3. I have 4.6 installed for my 190-200 lbs.
- Stock Husaberg FE250 is "stated" to have 4.4 N/mm fork spring, but when tested have been consistently soft - as low as 4.2
- Stock Husqvarna FE250 is "stated" as having 4.2 N/mm fork spring, the suspicion is that the spring has not been changed - just rated more accurately.
- this 4CS variation is unusual for KTM - in a CC fork the spring rates have largely been consistent and accurate.
Shock:
- The stock rate for XC-F and Husqvarna FE250 is 54 N/mm.

Observations:
- In stock form the fork seems soft relative to the shock and the bike may perform unbalanced depending on rider weight, skill, and sag setting
- WP only offers a 51 N/mm alternative for the rear, but offers 3.8 N/mm for the front - more than twice the relative reduction in spring rate from "stock"
- As local buyers of a global product, some of our perception may come from the terrain - Perhaps we find the soft front more objectionable than those in other parts of the world who ride less technical terrain?

Bill Nye comment:
- PLEASE NOTE that some spring manufacturers use different units to express spring rate - Race Tech expresses in kg/mm, KTM and Slavens in N/mm
- kg/mm and N/MM are not simply 10x separated: conversion is N = kg x 9.8
- This is very material if you are ordering parts: a 54 N/mm fork spring is 5.5 kg/mm, and a 4.2 N/mm spring is 0.43 kg/mm
- If you are comparing a WP fork spring at 4.6 and Race Tech spring at 0.46, THE RACE TECH IS REALLY A 4.5!!!!!

Hope that helps!
RJH

[giantjoe]

Bill Nye comment:
- PLEASE NOTE that some spring manufacturers use different units to express spring rate - Race Tech expresses in kg/mm, KTM and Slavens in N/mm
- kg/mm and N/MM are not simply 10x separated: conversion is N = kg x 9.8
- This is very material if you are ordering parts: a 54 N/mm fork spring is 5.5 kg/mm, and a 4.2 N/mm spring is 0.43 kg/mm
- If you are comparing a WP fork spring at 4.6 and Race Tech spring at 0.46, THE RACE TECH IS REALLY A 4.5!!!!!

Hope that helps!
RJH

Just to be clear, Bill Nye is known to be a science guy, therefore gravity can be considered 10...

[Zeal]

Pick up some spring yesterday from Dobi. I think they came off the mini trampoline in the front yard

Anybody know what the number marking on the KTM shock spring mean? The 5.4 on my 2013 has "X/X" marking. The one off of Dobi's 300 has 5.4 "Z/R". The one on my 350 XCF has 5.7 "Z/M"

Anyone know what these markings mean?