Model:  KTM 640 LC4 Hard Enduro 2007

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

0.44

Stock Shock Spring Rate

6.6

Bike Type

OFFROAD

Ideal Rider Weight

70 kg

Engine Specifications

4 Stroke Engine 628 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
46 mm ID

Shock Dimensions

Nitrogen Pressure
150 psi
Shock Length (Eye to Eye)
410 mm
Shock Travel
111 mm
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).

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