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 2017-2022
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 2017-2022
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 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 2018-2022
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 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 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: 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 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 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: 43.5-295-660-96 / Shock: 63-260-42
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 0.76 | 3.6 |
| 55-65kg | 0.80 | 3.8 |
| 65-75kg | 0.88 | 4.0 |
| 75-85kg | Standard | Standard |
| 85-95kg | 1.00 | 4.4 |
| 95-105kg | 1.04 | 4.6 |
| 105-115kg | 1.08 | 4.8 |
| 115-125kg | 1.08 | 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 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 2007
Standard: Fork: 43.2-455-4.6 / Shock: 63-250-66
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 0.40 | 5.8 |
| 55-65kg | 0.42 | 6.0 |
| 65-75kg | 0.44 | 6.3 |
| 75-85kg | Standard | Standard |
| 85-95kg | 0.48 | 6.9 |
| 95-105kg | 0.50 | 7.2 |
| 105-115kg | 0.50 | 7.6 |
| 115-125kg | 8.0 |
KTM 450 SXF 2011-2012
Standard: Fork: 43.2-485-4.8 / Shock: 63-250-56
| 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 | 6.4 |
KTM 450 SXF 2016
Standard: Fork (Air): 10.8 bar / Shock: 63-260-48
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 4.2 | |
| 55-65kg | 4.4 | |
| 65-75kg | 10.4 | 4.6 |
| 75-85kg | Standard | Standard |
| 85-95kg | 11 | 5.0 |
| 95-105kg | 5.2 | |
| 105-115kg | 5.4 | |
| 115-125kg | 5.6 |
KTM 450 SXF 2008
Standard: Fork: 43.2-485-4.8 / Shock: 63-250-69
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 0.42 | 6.0 |
| 55-65kg | 0.44 | 6.3 |
| 65-75kg | 0.46 | 6.6 |
| 75-85kg | Standard | Standard |
| 85-95kg | 0.50 | 7.2 |
| 95-105kg | 0.52 | 7.6 |
| 105-115kg | 8.0 | |
| 115-125kg | 8.4 |
KTM 450 SXF 2013-2014
Standard: Fork: 43.2-485-4.8 / Shock: 63-260-57
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 0.44 | 5.0 |
| 55-65kg | 0.46 | 5.2 |
| 65-75kg | 0.48 | 5.4 |
| 75-85kg | Standard | Standard |
| 85-95kg | 0.52 | 5.8 |
| 95-105kg | 0.54 | 6.0 |
| 105-115kg | 6.2 | |
| 115-125kg | 6.4 |
KTM 450 SXF 2017-2022
Standard: Fork: 435-295-660-96 / Shock: 63-260-45
| Rider’s weight | Fork springs | Shock spring |
| 45-55kg | 0.84 | 4.0 |
| 55-65kg | 0.88 | 4.2 |
| 65-75kg | 0.92 | 4.4 |
| 75-85kg | Standard | Standard |
| 85-95kg | 1.00 | 4.8 |
| 95-105kg | 1.04 | 5.0 |
| 105-115kg | 1.08 | 5.2 |
| 115-125kg | 1.08 | 5.4 |