Fox SLS and Steel Spring Rear Shock Fitment

Spring Measurements

Fox springs have two measurements, and for this example we will use 500 lbs x 2.8".

  • - “500 lbs” refers to the spring rate, which is how stiff or soft the spring is.
  • - “2.8"” refers to the maximum free stroke of the spring. Free stroke is the maximum amount a spring can be compressed until the coils touch and create “coil bind” which is very bad. This example spring can be compressed 2.8" before coil bind occurs.
  • - Springs also have a "TLG" length which just means Total Length. This is physically how long the spring is when uncompressed.


The following must apply for proper spring fitment:
- Each shock has a minimum and maximum TLG that fits, which is shown in the first set of charts below.
- The goal is to find a spring with your desired spring rate and with a TLG that falls within the range of TLG for your shock’s model and size.
- The stroke length of the spring MUST be larger than the stroke length of your shock. If it is not, coil bind will occur and parts will explode.


HOW TO FIND WHICH FOX SPRING FITS YOUR SHOCK

STEP 1
- Find your shock’s model and size in the first group of charts.
- Write down the shortest and longest TLG lengths shown in the chart.
STEP 2
- Scroll down to the model of Fox spring you want.
- Refer to the right side “Commonly Used With” to quickly locate which length most likely applies.
STEP 3
- Look for the spring rate you want in the chart. Some sizes have the same spring rate twice, so note that.
- Look at that spring’s TLG to see if it fits within the range of your shock that you wrote down.
- If your desired spring rate is listed twice, check each TLG to see which will fit.
STEP 4
- Make sure the spring’s stroke length is larger than your shock’s stroke length.
- For example: If you have a 65mm stroke, convert that to inches which is 2.6”. If a 2.8” spring’s TLG fits, then you are set since 2.8” is larger than 2.6”.
- If you find a TLG that fits, but the shock’s stroke is longer than the spring’s stroke, you may not be able to use a coil shock or need to find a different spring.
STEP 5
- If multiple springs show to fit, choose which one you'd like to use.
- A slightly shorter spring will sit farther down on the preload threads, while the longer option will sit higher on the threads.
- There is no performance advantage either way, and this is just personal preference. A shorter spring will be slightly lighter, but that is all.
STEP 6
- Order the spring that meets all criteria and ride!


fox dhx
fox dhx2
marzocchi bomber cr

Fox DHX Spring Fitment

Eye-to-eye Stroke Shortest TLG Spring That Fits Longest TLG Spring That Fits

165mm (T)

40-55mm

3.947 in/100.2mm

4.485 in/113.9mm

185mm (T)

47.5-55mm

4.341 in/110.3mm

5.273 in/133.9mm

190mm

40-55mm

3.947 in/100.2mm

4.485 in/113.9mm

205mm (T)

57.5-65mm

4.735in/120.3mm

6.061 in/153.9mm

210mm

47.5-55mm

4.341 in/110.3mm

5.273 in/133.9mm

225mm (T)

67.5-75mm

5.128 in/130.3mm

6.848 in/173.9mm

230mm

57.5-65mm

4.735 in/120.3mm

6.061 in/153.9mm

250mm

67.5-75mm

5.128 in/130.3mm

6.848 in/173.9mm

Fox DHX2 Spring Fitment

Eye-to-eye Stroke Shortest TLG Spring That Fits Longest TLG Spring That Fits

7.5 in

2 in

4.32 in/109.7mm

4.83 in/122.7mm

7.875 in

2 in

4.32 in/109.7mm

5.21 in/132.3mm

8.5 in

2.5 in

4.82 in/122.4mm

5.83 in/148.1mm

9.5 in

3 in

5.32 in/135.1mm

6.84 in/173.7mm

10.5 in

3.5 in

5.82 in/147.8mm

7.83 in/198.9mm

185mm (T)

55mm

4.48 in/113.8mm

5.30 in/134.6mm

210mm

47.5-55mm

4.49 in/114.0mm

5.60 in/142.2mm

205mm (T)

57.5-65mm

4.88 in/123.9mm

6.09 in/154.7mm

230mm

57.5-65mm

4.88 in/123.9mm

6.39 in/162.3mm

225mm (T)

67.5-75mm

5.27 in/133.8mm

6.88 in/174.7mm

250mm

67.5-75mm

5.28 in/134.1mm

7.18 in/182.4mm

VAN/Bomber CR Spring Fitment

Eye-to-eye Stroke Shortest TLG Spring That Fits Longest TLG Spring That Fits

7.5 in

2 in

4.05 in/102.9mm

5.15 in/130.8mm

7.875 in

2 in

4.05 in/102.9mm

5.53 in/140.5mm

7.875 in

2.5 in

4.30 in/109.2mm

5.53 in/140.5mm

8.5 in

2.5 in

4.55 in/115.6mm

6.1 in/156.2mm

8.75 in

2.75 in

4.80 in/121.9mm

6.40 in/162.6mm

9.5 in

3 in

5.05 in/128.3

7.15 in/181.6mm

10.5 in

3.5 in

5.55 in/141.0mm

8.15 in/207.0mm

185mm (T)

55mm

4.21 in/106.9mm

5.19 in/131.8mm

210mm

47.5-55mm

4.43 in/112.5mm

5.92 in/150.4mm

205mm (T)

57.5-65mm

5.00 in/127.00mm

5.97 in/151.6mm

230mm

57.5-65mm

5.22 in/132.6mm

6.71 in/170.4mm

225mm (T)

67.5-75mm

5.78 in/146.8mm

6.76 in/171.7mm

250mm

67.5-75mm

6.00 in/152.4mm

7.50 in/190.5mm


SLS Springs

fox orange sls spring

2.4"/61mm Travel (1.385in ID)

Part # Description

033-22-000

2.4" x 300 lb - 4.28" TLG

033-22-001

2.4" x 325 lb - 4.41" TLG

033-22-002

2.4" x 350 lb - 4.38" TLG

033-22-003

2.4" x 375 lb - 4.52" TLG

033-22-004

2.4" x 400 lb - 4.6" TLG

033-22-005

2.4" x 425 lb - 4.54" TLG

033-22-006

2.4" x 450 lb - 4.74" TLG

033-22-007

2.4" x 475 lb - 4.68" TLG

033-22-008

2.4" x 500 lb - 4.67" TLG

033-22-009

2.4" x 550 lb - 4.91" TLG

033-22-010

2.4" x 600 lb - 4.97" TLG

033-22-011

2.4" x 650 lb - 4.97" TLG

033-22-012

2.4" x 700 lb - 4.97" TLG

Commonly used with:
- 7.875" x 2.25"

- 185mm(T) x 50mm
- 185mm(T) x 52.5mm
- 185mm(T) x 55mm
- 210mm x 50mm
- 210mm x 52.5mm
- 210mm x 55mm
- 230mm x 57.5mm


2.65"/67mm Travel (1.385in ID)

Part # Description

033-22-013

2.65" x 250 lb - 4.69" TLG

033-22-014

2.65" x 275 lb - 4.63" TLG

033-22-015

2.65" x 300 lb - 4.74" TLG

033-22-016

2.65" x 325 lb - 4.71" TLG

033-22-017

2.65" x 350 lb - 4.85" TLG

033-22-018

2.65" x 375 lb - 4.97" TLG

033-22-019

2.65" x 400 lb - 5.14" TLG

033-22-020

2.65" x 425 lb - 5.08" TLG

033-22-021

2.65" x 450 lb - 5.11" TLG

033-22-022

2.65" x 475 lb - 5.23" TLG

033-22-023

2.65" x 500 lb - 5.32" TLG

033-22-024

2.65" x 550 lb - 5.38" TLG

033-22-025

2.65" x 600 lb - 5.47" TLG

033-22-025

2.65" x 650 lb - 5.60" TLG

033-22-025

2.65" x 700 lb - 5.61" TLG

Commonly used with:
- 8.50" x 2.50"

- 205mm(T) x 60mm
- 205mm(T) x 62.5mm
- 205mm(T) x 65mm
- 230mm x 60mm
- 230mm x 62.5mm
- 230mm x 65mm


2.90"/74mm Travel (1.385in ID)

Part # Description

033-22-028

2.9" x 300 lb - 5.36" TLG

033-22-029

2.9" x 325 lb - 5.24" TLG

033-22-030

2.9" x 350 lb - 5.33" TLG

033-22-031

2.9" x 350 lb - 5.54" TLG

033-22-032

2.9" x 400 lb - 5.54" TLG

033-22-033

2.9" x 425 lb - 5.64" TLG

033-22-034

2.9" x 450 lb - 5.80" TLG

033-22-035

2.9" x 475 lb - 5.85" TLG

033-22-036

2.9" x 500 lb - 5.83" TLG

033-22-037

2.9" x 550 lb - 5.85" TLG

033-22-038

2.9" x 600 lb - 5.85" TLG

Commonly used with:
- 8.75" x 2.75"

- 225mm(T) x 70mm
- 250mm x 70mm


3.15"/80mm Travel (1.385in ID)

Part # Description

033-22-040

3.15" x 225 lb - 5.39" TLG

033-22-041

3.15" x 250 lb - 5.54" TLG

033-22-042

3.15" x 275 lb - 5.46" TLG

033-22-043

3.15" x 300 lb - 5.61" TLG

033-22-044

3.15" x 325 lb - 5.7" TLG

033-22-045

3.15" x 350 lb - 5.94" TLG

033-22-046

3.15" x 375 lb - 5.92" TLG

033-22-047

3.15" x 400 lb - 6.04" TLG

033-22-048

3.15" x 425 lb - 6.16" TLG

033-22-049

3.15" x 450 lb - 6.28" TLG

033-22-050

3.15" x 475 lb - 6.41" TLG

033-22-051

3.15" x 500 lb - 6.33" TLG

033-22-063

3.15" x 525 lb - 6.60" TLG

033-22-052

3.15" x 550 lb - 6.52" TLG

033-22-064

3.15" x 575 lb - 6.60" TLG

Commonly used with:
- 9.5" x 3.00"
- 225mm(T) x 72.5mm
- 225mm(T) x 75mm
- 250mm x 72.5mm
- 250mm x 75mm


3.65"/93mm Travel (1.385in ID)

Part # Description

033-22-053

3.65" x 225 lb - 6.26" TLG

033-22-054

3.65" x 250 lb - 6.42" TLG

033-22-055

3.65" x 275 lb - 6.49" TLG

033-22-056

3.65" x 300 lb - 6.75" TLG

033-22-057

3.65" x 325 lb - 6.72" TLG

033-22-058

3.65" x 350 lb - 6.83" TLG

033-22-059

3.65" x 375 lb - 6.93" TLG

033-22-060

3.65" x 400 lb - 7.08" TLG

033-22-061

3.65" x 425 lb - 7.22" TLG

033-22-062

3.65" x 450 lb - 7.51" TLG

Commonly used with:
- 10.5" x 3.5"

fox black steel spring

Standard Steel Springs

2.3"/58mm-2.5"/65mm Travel (1.385in ID)

Part # Description

039-03-011

2.5" x 250 lb - 4.285" TLG

039-03-012

2.5" x 300 lb - 4.344" TLG

039-03-013

2.45" x 350 lb - 4.381" TLG

039-03-014

2.45" x 400 lb - 4.675" TLG

039-03-015

2.37" x 450 lb - 4.723" TLG

039-03-016

2.35" x 500 lb - 4.733" TLG

039-03-017

2.35" x 550 lb - 4.776" TLG

039-03-018

2.35" x 600 lb - 4.830" TLG

039-03-019

2.30" x 650 lb - 4.954" TLG

039-03-009

2.55" x 700 lb - 5.701" TLG

039-03-101

2.30" x 800 lb - 5.280" TLG

Commonly used with:
- 7.875" x 2.25"
- 185mm(T) x 50mm
- 185mm(T) x 52.5mm
- 185mm(T) x 55mm
- 210mm x 50mm
- 210mm x 52.5mm
- 210mm x 55mm


2.8"/71mm Travel (1.385in ID)

Part # Description

039-03-022

2.8" x 250 lb - 4.924" TLG

039-03-001

2.8" x 350 lb - 5.799" TLG

039-03-002

2.8" x 400 lb - 5.459" TLG

039-03-003

2.8" x 450 lb - 5.409" TLG

039-03-004

2.8" x 500 lb - 5.728" TLG

039-03-005

2.8" x 550 lb - 5.949" TLG

039-00-600

2.8" x 550 lb - 5.750" TLG

039-03-007

2.8" x 600 lb - 6.382" TLG

039-00-601

2.8" x 600 lb - 5.750" TLG

039-03-008

2.8" x 650 lb - 6.150" TLG

039-03-010

2.8" x 700 lb - 6.402" TLG

Commonly used with:
- 8.5" x 2.5"
- 205mm(T) x 60mm
- 205mm(T) x 62.5mm
- 205mm(T) x 65mm
- 230mm x 57.5mm
- 230mm x 60mm
- 230mm x 62.5mm
- 230mm x 65mm


3.19"/81mm-3.25"/83mm Travel (1.385in ID)

Part # Description

039-09-022

2.8" x 250 lb - 4.924" TLG

039-03-001

2.8" x 350 lb - 5.799" TLG

039-09-002

2.8" x 400 lb - 5.459" TLG

039-09-003

2.8" x 450 lb - 5.409" TLG

039-09-004

2.8" x 500 lb - 5.728" TLG

039-09-005

2.8" x 550 lb - 5.949" TLG

039-09-600

2.8" x 550 lb - 5.750" TLG

039-09-007

2.8" x 600 lb - 6.382" TLG

039-09-601

2.8" x 600 lb - 5.750" TLG

039-09-008

2.8" x 650 lb - 6.150" TLG

039-09-010

2.8" x 700 lb - 6.402" TLG

Commonly used with:
- 8.75" x 2.75"
- 9.5" x 3.0"
- 225mm(T) x 70mm
- 225mm(T) x 72.5mm
- 225mm(T) x 75mm
- 250mm x 70mm
- 250mm x 72.5mm
- 250mm x 75mm


3.64"/92mm-3.85"/98mm Travel (1.385in ID)

Part # Description

039-12-000

3.85" x 150 lb - 6.800" TLG

039-12-001

3.80" x 200 lb - 7.000" TLG

039-12-008

3.80" x 225 lb - 7.000" TLG

039-12-002

3.75" x 250 lb - 7.200" TLG

039-12-009

3.75" x 275 lb - 7.500" TLG

039-12-003

3.70" x 300 lb - 7.750" TLG

039-12-010

3.70" x 325 lb - 7.755" TLG

039-12-004

3.70" x 350 lb - 7.750" TLG

039-12-005

3.65" x 400 lb - 7.750" TLG

039-12-006

3.65" x 450 lb - 8.100" TLG

039-12-007

3.64" x 500 lb - 8.250" TLG

Commonly used with:
- 10.5" x 3.5"


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360-306-8827

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