Suspension Parts for 2004 KTM 125 SX Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2004 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 2004 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

PDS6 71-90

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 125 cc

FORKS INFO

Fork Manufacturer

: 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: No

Fork Oil

Fork Oil Weight: SAE 5
Fork Oil Level: 110 mm
Oil Quanity: 2 Litres

Fork Spring Information

Standard Preload: 15 mm

Fork Comments

: Set preload with the adjuster at minimum. (Hex on cap is preload) See oil level instructions.

SHOCKS INFO

Shock Manufacturer

WP: 50 mm ID

Shock Dimensions

Nitrogen Pressure: 150 psi
Shock Length (Eye to Eye): 406 mm
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 Spring Information

Spring Rate - Claimed: PDS6 71-90 kg/mm

Fitment-Matched Suspension Parts by Category

FORK REBUILD KITS

6 Parts

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FORK SEALS & BUSHES

15 Parts

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SHOCK UPGRADE PARTS

4 Parts

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SHOCK SEAL CASE PARTS

6 Parts

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TOOLS & LUBRICANTS

24 Parts

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All Fitment-Matched Suspension Parts

Browse All 65 Products for KTM 125 SX 2004

Shock Seal Head Bullet 5Pc Kit

Techtool

Shock Seal Head Bullet 5Pc Kit

Shock Seal Head Bullet 5pc Kit
(SKU: 93-031-00)

$76.95
12 In Stock

Techtool Fork Tube Tool & Cartridge Rod Holding Plate

Techtool

Techtool Fork Tube Tool & Cartridge Rod Holding Plate

For KYB, Showa & WP Twin or Open Chamber Forks
(SKU: 93-032-00)

$220.00
15 In Stock

WP Reservoir Removal Tool - 2 Pin Type

Techtool

WP Reservoir Removal Tool - 2 Pin Type

Fits many WP Shocks from 1984 on
(SKU: 93-046-00)

$55.00
10 In Stock

Shock Bushing Driver Set

Techtool

Shock Bushing Driver Set

(SKU: 93-118-00)

$33.00
2 In Stock

Eibach EMS Moto Front Fork Spring Kit. 43.2 x 508 DR-Z400 WP 48 USD KTM 125 250 300 400 450 520

Eibach Suspension Technology

Eibach EMS Moto Front Fork Spring Kit. 43.2 x 508 DR-Z400 WP 48 USD KTM 125 250 300 400 450 520

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 974)

From $249.94

spring rate: 0.38 kg/mm

$249.94
Special Order

Shipped 2-3 Days. Stock at Eibach Australia.

Shipped 2-3 Days. Stock at Eibach Australia.

spring rate: 0.40 kg/mm

$249.94
2 In Stock

spring rate: 0.42 kg/mm

$249.94
Special Order

spring rate: 0.44 kg/mm

$249.94
1 In Stock

spring rate: 0.46 kg/mm

$249.94
1 In Stock

spring rate: 0.48 kg/mm

$249.94
3 In Stock

spring rate: 0.50 kg/mm

$249.94
1 In Stock

spring rate: 0.52 kg/mm

$249.94
1 In Stock

DRC Fork Seal Driver Set | Universal | 40-50mm

DRC Zeta Hardware

DRC Fork Seal Driver Set | Universal | 40-50mm

DRC Fork Seal Driver Tool Set
(SKU: D59-26-005)

$177.09
5 In Stock

DRC FORK CAP WRENCH PRO | WP | 50mm ORANGE

Enzo Racing

DRC FORK CAP WRENCH PRO | WP | 50mm ORANGE

Developed by Enzo Racing
(SKU: D59-37-172)

$45.00
3 In Stock

DRC ENZO | Fork Bracket Holder | 20/22/25/26/27mm Axle Sizes

Enzo Racing

DRC ENZO | Fork Bracket Holder | 20/22/25/26/27mm Axle Sizes

Co-developed product with Enzo Racing
(SKU: ED59-37-240)

$65.00
12 In Stock

DRC ENZO | Fork Cap Spinner | WP

DRC Zeta Hardware

DRC ENZO | Fork Cap Spinner | WP

(SKU: ED59-37-320)

$43.00
5 In Stock

48mm WP Fork Dust Wiper 2pc set (Low Friction)

Capelli Race

48mm WP Fork Dust Wiper 2pc set (Low Friction)

(SKU: FS48579.511.52DW.SET)

$49.95
798 In Stock

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