Suspension Springs - KTM

How to choose the right spring for my weight, usage, and bike?

Choosing the correct spring rate for the front suspension or rear shock of your motocross or enduro bike is essential to achieving optimal and safe handling.

Below, you will find links to spring rate recommendation tables based on the rider's weight, bike brand, model, and year, for both Motocross and Enduro.

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KTM Motocross spring rate chart

The "Rider's weight" is supposed without racegear.

KTM 50 SX

KTM 50 SX 2005-2006

Standard: Fork: 26-350-2.0 / Shock: 47-140-40

Rider's weight Fork springs Shock spring
15-25kg 0.18 3.5
25-35kg Standard Standard
35-45kg 0.22 4.5

KTM 50 SX 2007-2011

Standard: Fork: 26-350-2.0 / Shock: 47-140-35

Rider's weight Fork springs Shock springs
15-25kg 0.18 3.0
25-35kg Standard Standard
35-45kg 0.22 4.0

KTM 50 SX 2017-2024

Standard: Fork (air): 2 bar / Shock: 47-130-35

Rider's weight Fork springs Shock spring
15-25kg   3.0
25-35kg Standard Standard
35-45kg   4.0

KTM 65 SX

KTM 65 SX 2002-2011

Standard: Fork: 30-380-3.0 / Shock: 47-220-40

Rider's weight Fork springs Shock spring
25-30kg 0.24  
30-35kg 0.26 3.0
35-40kg 0.28 3.5
40-45kg Standard Standard
45-50kg 0.32 4.5
50-55kg   5.0

KTM 65 SX 2012-2016

Standard: Fork: 29.5-370-2.8 / Shock: 47-220-40

Rider's weight Fork springs Shock spring
25-30kg    
30-35kg 0.24 3.0
35-40kg 0.26 3.5
40-45kg Standard Standard
45-50kg 0.30 4.5
50-55kg 3.2 5.0

KTM 65 SX 2017-2023

Standard: Fork (air) 3 bar / Shock: 47-210-40

Rider's weight Fork springs Shock spring
25-30kg    
30-35kg   3.0
35-40kg   3.5
40-45kg Standard Standard
45-50kg   4.5
50-55kg   5.0

KTM 65 SX 2024

Standard: Fork: 0.28kg / Shock: 4.6kg

Rider's weight Fork springs Shock spring
25-30kg    
30-35kg   3.5
35-40kg   4.0
40-45kg Standard Standard
45-50kg   5.0
50-55kg   5.5
 
 

KTM 85 SX

KTM 85 SX 2004-2005

Standard: Fork: 38-425-3.0 / Shock: 59-220-40

Rider's weight Fork springs Shock spring
30-35kg 0.24  
35-40kg 0.26 3.0
40-45kg 0.28 3.5
45-50kg Standard Standard
50-55kg Standard Standard
55-60kg 0.32 4.5
60-65kg 0.34 5.0
65-70kg 0.36 5.5
70-75kg 0.38 6.0

KTM 85 SX 2018-2024

Standard: Fork (Air): 5 bar / Shock: 59-220-40

Rider's weight Fork springs Shock spring
30-35kg    
35-40kg   3.0
40-45kg   3.5
45-50kg Standard Standard
50-55kg Standard Standard
55-60kg   4.5
60-65kg   5.0
65-70kg   5.5
70-75kg   6.0

KTM 85 SX 2006-2007

Standard: Fork: 38-425-3.0 / Shock: 59-220-40

Rider's weight Fork springs Shock spring
30-35kg 0.24  
35-40kg 0.26 3.0
40-45kg 0.28 3.0
45-50kg Standard Standard
50-55kg Standard Standard
55-60kg 0.32 4.0
60-65kg 0.34 4.5
65-70kg 0.36 5.0
70-75kg 0.38 5.5

KTM 85 SX 2008-2017

Standard: Fork: 38-425-3.4 / Shock: 59-220-35

Rider's weight Fork springs Shock spring
30-35kg 0.28  
35-40kg 0.30 3.0
40-45kg 0.32 3.0
45-50kg Standard Standard
50-55kg Standard Standard
55-60kg 0.36 4.0
60-65kg 0.38 4.5
65-70kg 0.40 5.0
70-75kg   5.5

KTM 125 SX

KTM 125 SX 2004-2006

Standard: Fork: 43.2-505-4.2-4.6 / Shock: 63-250-72

Rider's weight Fork springs Shock spring
45-55kg   6.3
55-65kg 0.38 6.6
65-75kg 0.40 6.9
75-85kg Standard Standard
85-95kg 0.44 7.6
95-105kg 0.46 8.0
105-115kg 0.48 8.4
115-125kg 0.50 8.8

KTM 125 SX 2009-2011

Standard: Fork: 43.2-485-4.2 / Shock: 63-250-63

Rider's weight Fork springs Shock spring
45-55kg   5.6
55-65kg 0.38 5.8
65-75kg 0.40 6.0
75-85kg Standard Standard
85-95kg 0.44 6.6
95-105kg 0.46 6.9
105-115kg 0.48 7.2
115-125kg 0.50 7.6

KTM 125 SX 2016

Standard: Fork (Air) / Shock: 63-260-48

Rider's weight Fork springs Shock spring
45-55kg   3.6
55-65kg   3.8
65-75kg   4.0
75-85kg Standard Standard
85-95kg   4.4
95-105kg   4.6
105-115kg   4.8
115-125kg   5.0

KTM 125 SX 2007

Standard: Fork: 43.8-455-4.2 / Shock: 63-250-60

Rider's weight Fork springs Shock spring
45-55kg   5.4
55-65kg 0.38 5.6
65-75kg 0.40 5.8
75-85kg Standard Standard
85-95kg 0.44 6.3
95-105kg 0.46 6.6
105-115kg 0.48 6.9
115-125kg 0.50 7.2

KTM 125 SX 2012-2014

Standard: Fork: 43.2-485-4.2 / Shock: 63-260-48

Rider's weight Fork springs Shock spring
45-55kg   4.2
55-65kg 0.38 4.4
65-75kg 0.40 4.6
75-85kg Standard Standard
85-95kg 0.44 5.0
95-105kg 0.46 5.2
105-115kg 0.48 5.4
115-125kg 0.50 5.6

KTM 125 SX 2017-2022

Standard: Fork: 435-295-660-88 / Shock: 63-260-39

Rider's weight Fork springs Shock spring
45-55kg 0.76 3.6
55-65kg 0.80 3.6
65-75kg 0.84 3.8
75-85kg Standard Standard
85-95kg 0.92 4.2
95-105kg 0.96 4.4
105-115kg 1.00 4.6
115-125kg 1.04 4.8

KTM 125 SX 2008

Standard: Fork: 43.2-485-4.2 / Shock: 63-250-60

Rider's weight Fork springs Shock spring
45-55kg   5.4
55-65kg 0.38 5.6
65-75kg 0.40 5.8
75-85kg Standard Standard
85-95kg 0.44 6.3
95-105kg 0.46 6.6
105-115kg 0.48 6.9
115-125kg 0.50 7.2

KTM 125 SX 2015

Standard: Fork: 43.2-485-4.4 / Shock: 63-260-48

Rider's weight Fork springs Shock spring
45-55kg 0.38 4.2
55-65kg 0.40 4.4
65-75kg 0.42 4.6
75-85kg Standard Standard
85-95kg 0.46 5.0
95-105kg 0.48 5.2
105-115kg 0.50 5.4
115-125kg 0.52 5.6

KTM 125 SX 2023-2024

Standard: Fork (Air) / Shock: 63-240-42

Rider's weight Fork springs Shock spring
45-55kg   3.6
55-65kg   3.8
65-75kg   4.0
75-85kg Standard Standard
85-95kg   4.4
95-105kg   4.6
105-115kg   4.8
115-125kg   5.0

KTM 250 SX

KTM 250 SX 2004-2006

Standard: Fork: 43.2-505-4.4 / Shock: 63-250-76

Rider's weight Fork springs Shock spring
45-55kg 0.38 6.6
55-65kg 0.40 6.9
65-75kg 0.42 7.2
75-85kg Standard Standard
85-95kg 0.46 8.0
95-105kg 0.48 8.4
105-115kg 0.50 8.8
115-125kg 0.52 9.2

KTM 250 SX 2009-2011

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-69

Rider's weight Fork springs Shock spring
45-55kg 0.38 6.0
55-65kg 0.40 6.3
65-75kg 0.42 6.6
75-85kg Standard Standard
85-95kg 0.46 7.2
95-105kg 0.48 7.6
105-115kg 0.50 8.0
115-125kg 0.52 8.4

KTM 250 SX 2017-2022

Standard: Fork: 43.5-295-660-92 / Shock: 63-260-42

Rider's weight Fork springs Shock spring
45-55kg 0.80 3.6
55-65kg 0.84 3.8
65-75kg 0.88 4.0
75-85kg Standard Standard
85-95kg 0.96 4.4
95-105kg 1.00 4.6
105-115kg 1.04 4.8
115-125kg 1.08 5.0

KTM 250 SX 2007

Standard: Fork: 43.2-455-4.4 / Shock: 63-250-63

Rider's weight Fork springs Shock spring
45-55kg 0.38 5.6
55-65kg 0.40 5.8
65-75kg 0.42 6.0
75-85kg Standard Standard
85-95kg 0.46 6.6
95-105kg 0.48 6.9
105-115kg 0.50 7.6
115-125kg 0.52 7.6

KTM 250 SX 2012-2014

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-54

Rider's weight Fork springs Shock spring
45-55kg 0.38 4.8
55-65kg 0.40 5.0
65-75kg 0.42 5.2
75-85kg Standard Standard
85-95kg 0.46 5.6
95-105kg 0.48 5.8
105-115kg 0.50 6.0
115-125kg 0.52 6.2

KTM 250 SX 2023-2024

Standard: Fork (Air) / Shock: 4.6kg

Rider's weight Fork springs Shock spring
45-55kg   4.0
55-65kg   4.2
65-75kg   4.4
75-85kg Standard Standard
85-95kg   4.8
95-105kg   5.0
105-115kg   5.2
115-125kg   5.4

KTM 250 SX 2008

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-63

Rider's weight Fork springs Shock spring
45-55kg 0.38 5.8
55-65kg 0.40 6.0
65-75kg 0.42 6.3
75-85kg Standard Standard
85-95kg 0.46 6.9
95-105kg 0.48 7.2
105-115kg 0.50 7.6
115-125kg 0.52 8.0

KTM 250 SX 2015-2016

Standard: Fork: 43.2-485-4.6 / Shock: 63-250-54

Rider's weight Fork springs Shock spring
45-55kg 0.40 4.8
55-65kg 0.42 5.0
65-75kg 0.44 5.2
75-85kg Standard Standard
85-95kg 0.48 5.6
95-105kg 0.50 5.8
105-115kg 0.52 6.0
115-125kg 0.54 6.2

KTM 250 SXF

KTM 250 SXF 2006

Standard: Fork: 43.2-505-4.4 / Shock: 63-250-76

Rider's weight Fork springs Shock spring
45-55kg 0.38 6.6
55-65kg 0.40 6.9
65-75kg 0.42 7.2
75-85kg Standard Standard
85-95kg 0.46 8.0
95-105kg 0.48 8.4
105-115kg 0.50 8.8
115-125kg 0.52 9.2

KTM 250 SXF 2009-2010

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-69

Rider's weight Fork springs Shock spring
45-55kg 0.38 6.0
55-65kg 0.40 6.3
65-75kg 0.42 6.6
75-85kg Standard Standard
85-95kg 0.46 7.2
95-105kg 0.48 7.6
105-115kg 0.50 8.0
115-125kg 0.52 8.4

KTM 250 SXF 2016

Standard: Fork (Air): 10.6 bar / Shock: 63-260-54

Rider's weight Fork springs Shock spring
45-55kg   3.8
55-65kg   4.0
65-75kg 10.3 bar 4.2
75-85kg Standard Standard
85-95kg 10.9 bar 4.6
95-105kg   4.8
105-115kg   5.0
115-125kg   5.2

KTM 250 SXF 2007

Standard: Fork: 43.2-455-4.4 / Shock: 63-250-63

Rider's weight Fork springs Shock spring
45-55kg 0.38 5.6
55-65kg 0.40 5.8
65-75kg 0.42 6.0
75-85kg Standard Standard
85-95kg 0.46 6.6
95-105kg 0.48 6.9
105-115kg 0.50 7.2
115-125kg 0.50 7.6

KTM 250 SXF 2011-2012

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-54

Rider's weight Fork springs Shock spring
45-55kg 0.38 4.8
55-65kg 0.40 5.0
65-75kg 0.42 5.2
75-85kg Standard Standard
85-95kg 0.46 5.6
95-105kg 0.48 5.8
105-115kg 0.50 6.0
115-125kg 0.52 6.2

KTM 250 SXF 2017-2022

Standard: Fork (Air) / Shock: 63-260-42

Rider's weight Fork springs Shock spring
45-55kg   3.6
55-65kg   3.8
65-75kg   4.0
75-85kg Standard Standard
85-95kg   4.4
95-105kg   4.6
105-115kg   4.8
115-125kg   5.0

KTM 250 SXF 2008

Standard: Fork: 43.2-485-4.4 / Shock: 63-250-66

Rider's weight Fork springs Shock spring
45-55kg 0.38 5.8
55-65kg 0.40 6.0
65-75kg 0.42 6.3
75-85kg Standard Standard
85-95kg 0.46 6.9
95-105kg 0.48 7.2
105-115kg 0.50 7.6
115-125kg 0.52 8.0

KTM 250 SXF 2013-2015

Standard: Fork: 43.2-485-4.6 / Shock: 63-260-54

Rider's weight Fork springs Shock spring
45-55kg 0.40 4.8
55-65kg 0.42 5.0
65-75kg 0.44 5.2
75-85kg Standard Standard
85-95kg 0.48 5.6
95-105kg 0.50 5.8
105-115kg 0.52 6.0
115-125kg 0.52 6.2

KTM 250 SXF 2023-2024

Standard: Fork (Air) / Shock: 63-240-42

Rider's weight Fork springs Shock spring
45-55kg   3.6
55-65kg   3.8
65-75kg   4.0
75-85kg Standard Standard
85-95kg   4.4
95-105kg   4.6
105-115kg   4.8
115-125kg   5.0

KTM 350 SXF

KTM 350 SXF 2011-2012

Standard: Fork: 43.2-485-4.8 / Shock: 63-260-54

Rider's weight Fork springs Shock spring
45-55kg 0.42 4.8
55-65kg 0.44 5.0
65-75kg 0.46 5.2
75-85kg Standard Standard
85-95kg 0.50 5.6
95-105kg 0.52 5.8
105-115kg 0.54 6.0
115-125kg 0.54 6.2

KTM 350 SXF 2017-2022

Standard: Fork (Air) / Shock: 63-260-42

Rider's weight Fork springs Shock spring
45-55kg   3.6
55-65kg   3.8
65-75kg   4.0
75-85kg Standard Standard
85-95kg   4.4
95-105kg   4.6
105-115kg   4.8
115-125kg   5.0

KTM 350 SXF 2013-2015

Standard: Fork: 43.2-485-4.8 / Shock: 63-260-56

Rider's weight Fork springs Shock spring
45-55kg 0.42 5.0
55-65kg 0.44 5.2
65-75kg 0.46 5.4
75-85kg Standard Standard
85-95kg 0.50 5.8
95-105kg 0.52 6.0
105-115kg 0.54 6.2
115-125kg 0.54 6.4

KTM 350 SXF 2023-2024

Standard: Fork (Air) / Shock: 63-240-45

Rider's weight Fork springs Shock spring
45-55kg   3.8
55-65kg   4.0
65-75kg   4.2
75-85kg Standard Standard
85-95kg   4.6
95-105kg   4.8
105-115kg   5.0
115-125kg   5.2

KTM 350 SXF 2016

Standard: Fork(Air) / Shock: 62-260-45

Rider's weight Fork springs Shock spring
45-55kg   3.8
55-65kg   4.0
65-75kg   4.2
75-85kg   Standard
85-95kg   Standard
95-105kg   4.8
105-115kg   5.0
115-125kg   5.2

KTM 450 SXF

KTM 450 SXF 2004-2006

Standard: Fork: 43.2-505-4.6 / Shock: 63-250-80

Riders' weight Fork springs Shock spring
45-55kg 0.40 6.9
55-65kg 0.42 7.2
65-75kg 0.44 7.6
75-85kg Standard Standard
85-95kg 0.48 8.4
95-105kg 0.50 8.8
105-115kg 0.52 9.2
115-125kg 0.54 9.2

KTM 450 SXF 2009-2010

Standard: Fork: 43.2-485-4.8 / Shock: 63-250-72

Rider's weight Fork springs Shock spring
45-55kg 0.42 6.3
55-65kg 0.44 6.6
65-75kg 0.46 6.9
75-85kg Standard Standard
85-95kg 0.50 7.6
95-105kg 0.52 8.0
105-115kg   8.8
115-125kg   8.8

KTM 450 SXF 2015

Standard: Fork: 43.2-485-4.8 / Shock: 63-260-57

Rider's weight Fork springs Shock spring
45-55kg 0.42 5.0
55-65kg 0.44 5.2
65-75kg 0.46 5.4
75-85kg Standard Standard
85-95kg 0.50 5.8
95-105kg 0.52 6.0
105-115kg 0.54 6.2
115-125kg   6.4

KTM 450 SXF 2023-2024

Standard: Fork (Air) / Shock: 4.6kg

Rider's weight Fork springs Shock spring
45-55kg   4.0
55-65kg   4.2
65-75kg   4.4
75-85kg Standard Standard
85-95kg   4.8
95-105kg   5.0
105-115kg   5.2
115-125kg   5.4