Choosing Spring Rates? Is one step noticeable?

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Vital MX member Johndeere506
56441 Johndeere506 /images/default/avatar/c50.png,56441/all 02/24/17 18 46

Posts: 64

Joined: 2/24/2017

Location: Fenton, MI USA

3/21/2017 7:54 AM

My new CRF250 comes with a 5.3 shock spring. What if the online spring calculators say to use a 5.4. Is that a noticeable difference in feel on the bike? Or not worth changing. What about a 5.5? Ive never done much for back to back comparison so I really don't know if spring rate changes are noticed in one step or not. This is for VET Intermediate level.


Vital MX member loftyair
15882 loftyair,15882/all 07/03/09 1 48 1597 205

Posts: 1645

Joined: 7/3/2009

Location: riverside, CA USA

3/21/2017 8:13 AM

If the static sag and rider sag are within 'correct' limits, you're fine.


Vital MX member suzukiread240
52061 suzukiread240,52061/all 04/28/16 1 1 14

Posts: 14

Joined: 4/28/2016

Location: Saint George, UT USA

3/21/2017 8:14 AM

When I did my CRF I did one spring rate and I couldn't really notice anything until I started doing moto's. With the correct setup for your weight and ability you will notice a huge difference with just one spring rate.


Vital MX member RussB
43777 RussB,43777/all 07/12/14 4,43777/setup 16 409 10

Posts: 425

Joined: 7/12/2014

Location: GBR

3/21/2017 9:29 AM

I went from a 55N/MM to a 54N/MM on my RMZ450, which reduced the free sag by 7mm while maintaining the same rider sag.
I noticed a difference, and a very positive one at that.

What are your rider sag and free sag numbers with your current spring?



Vital MX member Hallzilla
25521 Hallzilla,25521/all 01/21/11 23 1 31 699 2

Posts: 730

Joined: 1/21/2011

Location: Thousand Oaks, CA USA

3/21/2017 9:46 AM
Edited Date/Time: 3/21/2017 9:47 AM

This should help

The top of window shows "Calculate Spring rates" click and go