Suspension Parts for 2008 KTM 125 SX Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2008 KTM 125 SX. Every product in this category has been validated against year-specific fork and shock specifications to ensure true compatibility.
You’ll find fork components, shock parts, shims, upgrade kits, complete suspension systems, chassis components, and the tools and fluids required for accurate servicing - all aligned with the suspension setup of the 2008 KTM 125 SX.

Use this page as a reliable reference when maintaining, rebuilding, or upgrading your bike’s suspension.

Bike-Specific Suspension Specifications & Setup Information

CALCULATE SPRING RATES

This is a recommendation only please consult your manual

Ideal Fork Rate:

kg/mm ( N/mm)

Ideal Shock Rate:

kg/mm ( N/mm)

BIKE DETAILS

Stock Fork Spring Rate

0.41

Stock Shock Spring Rate

63N

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 125 cc

FORKS INFO

Fork Manufacturer

Fork Type: WP USD 48 mm OD

Fork Dimensions

Compression Nut Torque: 25 in-lb (0.29 kgf-m)
Fork Travel: 283 mm

Fork Features

Preload Adjuster: 10 mm Range
Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 5
Oil Quanity: 360cc

Fork Spring Information

Standard Preload: 15 mm

Fork Comments

: We suggest 22-25 psi bladder pressure

SHOCKS INFO

Shock Manufacturer

Shock Type: WP 50 mm ID

Shock Dimensions

Nitrogen Pressure: 150 psi
Shock Travel: 100 mm
Shock Shaft Outer Diameter: 18 mm
Standard Sag: 113-118 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 5 Weight
Standard Preload: 6

Shock Features

Non-rebuildable: No

Shock Comments

: Longer shock than 2000-2007. Ratio change. New alloy body. New DCC on offroad models and the first alloy metering needle.

Fitment-Matched Suspension Parts by Category

FORK REBUILD KITS

6 Parts

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FORK SPRINGS
Ideal Fork Rate for kg: kg/mm ( N/mm)

2 Parts

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FORK SEALS & BUSHES

14 Parts

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FORK UPPER & LOWER TUBE PARTS

2 Parts

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SHOCK UPGRADE PARTS

5 Parts

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SHOCK SPRINGS
Ideal Spring Rate for kg: kg/mm ( N/mm)

3 Parts

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SHOCK BLADDER PARTS

3 Parts

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SHOCK SEAL CASE PARTS

6 Parts

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TOOLS & LUBRICANTS

32 Parts

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All Fitment-Matched Suspension Parts

Browse All 74 Products for KTM 125 SX 2008

KYB Grease 250ml

Kayaba (KYB) Genuine Motorcycle Parts

KYB Grease 250ml

Original KYB Suspension Lubricants
(SKU: 130062500101)

$60.50
1 In Stock

HiCalibre Shock Spring 62 x 260 (Eibach 896) Common Fitment KTM Link and early PDS

HiCalibre

HiCalibre Shock Spring 62 x 260 (Eibach 896) Common Fitment KTM Link and early PDS

Proudly made in the USA
(SKU: 20-095)

From $245.00

Spring Rate: 6.0-8.0 Kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

SPECIAL ORDER Item from USA. 4-6 weeks delivery

SPECIAL ORDER Item from USA. 4-6 weeks delivery

Spring Rate: 8.0-10.0 kg/mm Progressive
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 9.5-12.5 kg/mm Progressive
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 10.0-13.0 kg/mm Progressive
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 6.6-8.6 kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 7.0-9.0 kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 7.6-9.6 kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.4-7.8 kg/mm Progressive
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 6.6-8.3 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 6.9-8.8 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 7.2-9.4 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 7.5-10.0 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 7.9-10.5 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 8.3-11.0 kg/mm Progressive
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 8.6-11.4 kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.0-11.8 kg/mm Progressive
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 10.0 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 3.4 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 3.6 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 3.8 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 4.0 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 4.2 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 4.4 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 4.6 kg/mm
Spring Colour: Orange

$245.00
Special Order

Spring Rate: 4.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 5.0 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 5.2 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 5.4 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 5.6 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 5.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.0 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.2 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.4 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.6 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 7.0 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 7.2 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 7.4 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 7.6 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 7.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 8.0 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 8.2 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 8.4 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 8.6 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 8.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.0 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.2 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.4 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.6 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 9.8 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 3.6 kg/mm
Spring Colour: Black or White

$345.00
3 In Stock

Spring Rate: 3.8 kg/mm
Spring Colour: Black or White

$345.00
1 In Stock

Spring Rate: 3.4 kg/mm
Spring Colour: Black or White

$345.00
Special Order

Spring Rate: 7.0-9.0 kg/mm Progressive
Spring Colour: Orange

$245.00
Special Order

WP Rebound Adjuster - Late PDS

WP Genuine Parts

WP Rebound Adjuster - Late PDS

(SKU: 22-010-18)

$55.00
17 In Stock

Teflon Shaft Bushing - 18 x 20 x 12

Teknik Motorsport

Teflon Shaft Bushing - 18 x 20 x 12

18mm id x 20mm od x 12mm Length
(SKU: 22-080-01)

$2.75
477 In Stock

Bump Stop Rubber 18 x 56 x 62 (WP 50180480 and 5018 0480)

Teknik Motorsport

Bump Stop Rubber 18 x 56 x 62 (WP 50180480 and 5018 0480)

18mm id x 56mm od x 62mm tall - WP Early PDS
(SKU: 22-286-01)

Height H (mm): 62.0

Outside Ø D (mm): 56.0

$22.00
991 In Stock

Shock Oil Seal 18 x 30 x 5 Viton Hi Performance

Capelli Race

Shock Oil Seal 18 x 30 x 5 Viton Hi Performance

18mm id x 30mm od x 5mm thick - WP/Showa
(SKU: 22-406-00)

Oil Seal Inside Diameter d (mm): 18.0

Oil Seal Outside Ø D1 (mm): 30.0

Oil Seal Height H (mm): 5.0

$27.50
944 In Stock

Capelli Race 18mm Shock Repair Kit for WP 46/18 & 50/18

Capelli Race

Capelli Race 18mm Shock Repair Kit for WP 46/18 & 50/18

WP 18mm Shock Seal Head Service Kit 46mm & 50mm Seal C
(SKU: 22-418-00)

$59.95
97 In Stock

Capelli Race WP 18mm id Dust Wiper (50180606)

Capelli Race

Capelli Race WP 18mm id Dust Wiper (50180606)

WP 46 and 50mm Shock
(SKU: 22-445-00)

Inside Diameter d (mm): 18.0

Height H (mm): 5.5

Outside Diameter d (mm): 30.0

$19.95
996 In Stock

Nitrogen Shock Filling Valve M5

Teknik Motorsport

Nitrogen Shock Filling Valve M5

Standard M5 0.8mm thread - WP replacement
(SKU: 22-600-00)

$20.00
12 In Stock

WP Regas Valve (M5x0.8 Schrader)

Teknik Motorsport

WP Regas Valve (M5x0.8 Schrader)

Suits WP Shocks
(SKU: 22-600-09)

$30.80
8 In Stock

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