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YAMAHA YZ450F 2018

Ideal Fork Rate:
kg/mm ( N/mm)
Ideal Shock Rate:
kg/mm ( N/mm)
Stock Fork Spring Rate
0.50
Stock Shock Spring Rate
5.6
Bike Type
MX
Ideal Rider Weight
85 kg
Engine Specifications
4 Stroke Engine 450 cc

Forks Info

Fork Manufacturer

KYB USD 48 mm OD

Fork Dimensions

Compression Nut Torque
48 in-lb (0.56 kgf-m)
Fork Travel
300 mm

Fork Features

Preload Adjuster
5 mm Range
Twin Chamber Fork
Yes

Fork Oil

Fork Oil Weight
SAE 2.5
Fork Oil Level
360cc mm
Oil Quanity
2 Litres

Fork Spring Information

Spring Rate – Claimed
0.46
Standard Preload
5 mm

Fork Comments

Check floating piston for cracking

43.5-497 : Teknik Fork Springs 43.5 x 497 (Eibach 963)

963 : Eibach Fork Springs 43.7 x 499 (43.5-497)

Shocks Info

Shock Manufacturer

KYB
50 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Shaft Outer Diameter
16 mm
Standard Sag
103 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
10
Wheel Travel
300 mm

Shock Features

Non-rebuildable
No

Shock Comments

Replace alloy shock collars with steel if binding.

20-135 : HiCalibre Shock Spring 63.5/65.5 x 280 (64_66-275)

64_66-275 : Teknik Shock Spring 64/66 x 275

880 : Eibach Shock Spring 63/65 x 270 (64_66-275)


Forks Info

Fork Manufacturer

KYB USD 48 mm OD

Fork Dimensions

Compression Nut Torque
48 in-lb (0.56 kgf-m)
Fork Travel
300 mm

Fork Features

Preload Adjuster
5 mm Range
Twin Chamber Fork
Yes

Fork Oil

Fork Oil Weight
SAE 2.5
Fork Oil Level
360cc mm
Oil Quanity
2 Litres

Fork Spring Information

Spring Rate – Claimed
0.46
Standard Preload
5 mm

Fork Comments

Check floating piston for cracking

43.5-497 : Teknik Fork Springs 43.5 x 497 (Eibach 963)

963 : Eibach Fork Springs 43.7 x 499 (43.5-497)

Shocks Info

Shock Manufacturer

KYB
50 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Shaft Outer Diameter
16 mm
Standard Sag
103 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
10
Wheel Travel
300 mm

Shock Features

Non-rebuildable
No

Shock Comments

Replace alloy shock collars with steel if binding.

20-135 : HiCalibre Shock Spring 63.5/65.5 x 280 (64_66-275)

64_66-275 : Teknik Shock Spring 64/66 x 275

880 : Eibach Shock Spring 63/65 x 270 (64_66-275)