YAMAHA YZF600R Thundercat 1993

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


Stock Shock Spring Rate


Bike Type


Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 599 cc

Forks Info

Fork Manufacturer

KYB Conventional 41 mm OD

Fork Dimensions

Compression Nut Torque
30 in-lb (0.35 kgf-m)
Fork Travel
130 mm

Fork Features

Preload Adjuster
15 mm Range

Fork Oil

Fork Oil Weight
Fork Oil Level
110 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
8 mm

Fork Comments

Stock cartrige bushes poorly toleranced. Suggest fitting 24-711-00 bushes x2

Shocks Info

Shock Manufacturer

46 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
487 mm
Shock Travel
141 mm
Shock Shaft Outer Diameter
16 mm
Standard Sag
95 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload

Shock Comments

Some Top Out Bumpers are bad from the factory (they break and plug the valves). RecommEND replacement.

Teknik Motorsport

Outer Guide Bush 41 x 12 x 2.0

41mm id x 12mm tall x 2.0mm thick
(SKU: 24-508-00)
Inside Diameter d (mm):   41.0
Fork Inner Tube Ø d (mm):   41.0
Height H (mm):   12.0
Outside Ø D (mm):   45.0
Wall Thickness (mm):   2.0
9 In Stock