Suspension Parts for 2018 YAMAHA YZ450F Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2018 YAMAHA YZ450F. 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 2018 YAMAHA YZ450F.

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

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

0.50

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

Fork Type: 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
Oil Quanity: 360cc

Fork Spring Information

Spring Rate – Claimed: 0.46
Standard Preload: 5 mm

Fork Comments

: Check floating piston for cracking

SHOCKS INFO

Shock Manufacturer

Shock Type: 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.

Fitment-Matched Suspension Parts by Category

FORK COMPRESSION ADJUSTER ASSY

31 Parts

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SUSPENSION LOCKNUTS & BUSHES

28 Parts

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TOOLS & LUBRICANTS

51 Parts

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All Fitment-Matched Suspension Parts

Browse All 277 Products for YAMAHA YZ450F 2018

Enzo Technica Works Fork Spring Tubes 25mm KYB

Enzo Racing

Enzo Technica Works Fork Spring Tubes 25mm KYB

(SKU: ER-TFST-25K)

$495.00
Special Order

Free piston ff complete YZ250(X)F 19-/YZF450 18-,

Kayaba (KYB) Genuine Motorcycle Parts

Free piston ff complete YZ250(X)F 19-/YZF450 18-,

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110260000901)

$242.78
Coming Soon

Free piston spring ff 22N/mm 107mm / 26 dia

Kayaba (KYB) Genuine Motorcycle Parts

Free piston spring ff 22N/mm 107mm / 26 dia

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110240001001)

$125.63
Coming Soon

Front Fork KYB Oil 01M 1L *Discontinued*

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork KYB Oil 01M 1L Discontinued

Original KYB Suspension Lubricants
(SKU: 130010010101)

Pack Size: 1 L Pack

$48.96
Special Order

Front Fork KYB Oil 01M 200L *Discontinued*

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork KYB Oil 01M 200L Discontinued

Original KYB Suspension Lubricants
(SKU: 130012000101)

Pack Size: 200 L Drum

$8,088.49
Special Order

Front Fork KYB Oil 01M 5L *Discontinued*

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork KYB Oil 01M 5L Discontinued

Original KYB Suspension Lubricants
(SKU: 130010050101)

Pack Size: 5 L Bottle

$226.19
Special Order

Innertube comp ff YZF250 19-23 Left

Kayaba (KYB) Genuine Motorcycle Parts

Innertube comp ff YZF250 19-23 Left

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110794805201)

$685.47
Special Order

Innertube comp ff YZF450 18-23 Left

Kayaba (KYB) Genuine Motorcycle Parts

Innertube comp ff YZF450 18-23 Left

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110794810401)

$685.47
Special Order

Innertube comp ff YZF450 18-23 Right

Kayaba (KYB) Genuine Motorcycle Parts

Innertube comp ff YZF450 18-23 Right

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110794810201)

$685.47
Special Order

InnTeck Inner Slide Fork Bush KAYABA 48mm **can use KYB 110034800102**

Innteck

InnTeck Inner Slide Fork Bush KAYABA 48mm can use KYB 110034800102

KAYABA 48mm 47x49x20
(SKU: SKTE48K)

Inside Diameter d (mm): 47.0

Fork Inner Tube Ø d (mm): 48.0

Height H (mm): 20.0

Outside Ø D (mm): 49.0

Wall Thickness (mm): 1.0

$22.00
Nil Stock

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