Suspension Parts for KTM 400 SX 2000 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2000 KTM 400 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 2000 KTM 400 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

Rider Weight

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

0.42

Stock Shock Spring Rate

PDS3 80-103

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 400 cc

FORKS INFO

Fork Manufacturer

WP USD 43 mm OD

Fork Dimensions

Compression Nut Torque
25 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
120 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
15 mm

Fork Comments

Check rebound adjuster needles. Bead blast. Replace O rings. Check Mid Valve shims often bent.

SHOCKS INFO

Shock Manufacturer

WP
50 mm ID

Shock Dimensions

Nitrogen Pressure
150 psi
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

Fitment-Matched Suspension Parts by Category

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All Fitment-Matched Suspension Parts

Browse All 38 Products for KTM 400 SX 2000

Innteck

InnTeck Inner Slide Fork Bush WP 43mm

can use SKF-VKWA-WP43-A
(SKU: SKTE43W)
Inside Diameter d (mm):   42.0
Fork Inner Tube Ø d (mm):   43.0
Height H (mm):   20.0
Outside Ø D (mm):   44.0
Wall Thickness (mm):   1.0
$22.00
8 In Stock

Innteck

InnTeck Outer Guide Fork Bush WP 43mm

can use SKF-VKWA-WP43-A
(SKU: SKTI43W)
Inside Diameter d (mm):   43.0
Fork Inner Tube Ø d (mm):   43.0
Height H (mm):   12.0
Outside Ø D (mm):   47.0
Wall Thickness (mm):   2.0
$22.00
3 In Stock





Innteck

InnTeck Outer Guide Fork Bush WP 43mm

VECCHIE WP 43mm 00-02 43x47x20
(SKU: SKTI43WO)
Inside Diameter d (mm):   43.0
Fork Inner Tube Ø d (mm):   43.0
Height H (mm):   20.0
Outside Ø D (mm):   47.0
Wall Thickness (mm):   2.0
$22.00
Nil Stock
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