Suspension Parts for KTM 640 SMC LC4 2006 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2006 KTM 640 SMC LC4. 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 2006 KTM 640 SMC LC4.

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

Bike Type

MOTARD

Ideal Rider Weight

70 kg

Engine Specifications

4 Stroke Engine 640 cc

FORKS INFO

Fork Manufacturer

WP USD 48 mm OD

Fork Features

Twin Chamber Fork
No

SHOCKS INFO

Shock Manufacturer

WP
46 mm ID

Shock Dimensions

Nitrogen Pressure
150 psi
Shock Shaft Outer Diameter
14 mm
Standard Sag
85 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
5 Weight

Shock Features

Non-rebuildable
No

Shock Comments

Compression adjuster is opposite (Counterclockwise is stiffer).

Fitment-Matched Suspension Parts by Category

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All Fitment-Matched Suspension Parts

Browse All 39 Products for KTM 640 SMC LC4 2006

SKF Sealing

SKF WP Fork Seal Kit 48mm (Dual Comp)

Requires 2 kits for complete fork service.
(SKU: SKF-DUAL-48W)
Colour:   Green/Orange
Seal Outer Ø D (mm):   58.20
Seal Height H (mm):   9.0
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   5.7
Fork Inner Tube Ø d (mm):   48.0
$69.95
38 In Stock

SKF Sealing

SKF Fork Bushings Kit 2pcs - 1x Inner 1x Outer - WP 48

Genuine SKF Fork Bush Kit
(SKU: SKF-VKWA-WP48-A)
Fork Inner Tube Ø d (mm):   48.0
External Teflon Bushing Dimensions (mm):   47X49X20
Internal Teflon Bushing Dimensions (mm):   48X52X12
Suspension Brand:   WP
$44.95
12 In Stock

SKF Sealing

SKF 48mm WP Fork Seal and Wiper Set

Requires 2 kits for complete fork service.
(SKU: SKF48W)
Colour:   Green
Seal Outer Ø D (mm):   58.20
Seal Height H (mm):   9.0
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   5.7
Fork Inner Tube Ø d (mm):   48.0
$59.95
4 In Stock

SKF Sealing

SKF 48mm WP Fork Seal and Wiper Set - Heavy Duty

Requires 2 kits for complete fork service.
(SKU: SKF48WHD)
Colour:   Green
Seal Outer Ø D (mm):   58.20
Seal Height H (mm):   9.0
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   5.7
Fork Inner Tube Ø d (mm):   48.0
$59.95
25 In Stock




Tractive X-PERIENCE Shock KTM 640 LC4-E SM

Tractive X-PERIENCE Shock KTM 640 LC4-E SM

Rear | Standard Height
(SKU: 46KT03-T4124-TR)
Position (Front or Rear):   Rear
Damping Adjustment Type:   Rebound & Compression High + Low Speed
Seat Height Change (mm):   Standard Height
Shock Length Eye to Eye (mm):   401.0
Spring Rate Standard:   70 N/mm
Type Code:   X-PERIENCE
Stroke Metal to Metal (mm):   107.0
Fitted Spring:   70-235