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

CHASSIS PARTS

11 Parts

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COMPLETE FRONT FORKS

8 Parts

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FORK CARTRIDGE KITS

7 Parts

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FORK UPGRADE PARTS

17 Parts

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FORK SPRINGS
Ideal Fork Rate for kg: kg/mm ( N/mm)

5 Parts

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FORK CARTRIDGE ASSEMBLY PARTS

13 Parts

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FORK SEALS & BUSHES

15 Parts

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FORK COMPRESSION ADJUSTER ASSY

31 Parts

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FORK CARTRIDGE ROD PARTS

18 Parts

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FORK UPPER & LOWER TUBE PARTS

19 Parts

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FORK O-RINGS

18 Parts

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COMPLETE SHOCKS

6 Parts

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SHOCK UPGRADE PARTS

17 Parts

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SHOCK SPRINGS
Ideal Spring Rate for kg: kg/mm ( N/mm)

5 Parts

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SHOCK SPRING RETAINERS /BUMPERS

5 Parts

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SHOCK BLADDER PARTS

13 Parts

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SHOCK SEAL CASE PARTS

14 Parts

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SHOCK SHAFT PARTS

18 Parts

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SHOCK BODY PARTS

18 Parts

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SHOCK PISTON PARTS

9 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

52mm High Capacity Shock Bladder Cap - Black

Teknik Motorsport

52mm High Capacity Shock Bladder Cap - Black

(SKU: 30-002-62)

$44.00
13 In Stock

All Balls Rear Shock Seal Kit - CR/CRF/KX/KLX/RM/DRZ

All Balls

All Balls Rear Shock Seal Kit - CR/CRF/KX/KLX/RM/DRZ

16 ID 50OD
(SKU: 37-1001)

Shock Bore Ø D (mm): 50.0

Shock Shaft Ø D (mm): 16.0

Height H (mm): 22.0

$95.00
1 In Stock

Base valve ff compression YZ(-F) 06-, KX250F 20-

Kayaba (KYB) Genuine Motorcycle Parts

Base valve ff compression YZ(-F) 06-, KX250F 20-

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110490000301)

$95.47
12 In Stock

Base valve ff rebound KX450F11-12,YZ450F18-,YZ250F

Kayaba (KYB) Genuine Motorcycle Parts

Base valve ff rebound KX450F11-12,YZ450F18-,YZ250F

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110500003801)

$91.23
5 In Stock

Bearing body rcu collar o-ring YZ/CR

Kayaba (KYB) Genuine Motorcycle Parts

Bearing body rcu collar o-ring YZ/CR

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120020000101)

$4.86
3 In Stock

Bearing body rcu dust seal YZ/GasGas 18-

Kayaba (KYB) Genuine Motorcycle Parts

Bearing body rcu dust seal YZ/GasGas 18-

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120030000101)

$7.23
10 In Stock

Bearing body rcu needle bottom end YZ

Kayaba (KYB) Genuine Motorcycle Parts

Bearing body rcu needle bottom end YZ

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120490000101)

$41.88
7 In Stock

Bearing body rcu stop ring YZ/CR/GasGas

Kayaba (KYB) Genuine Motorcycle Parts

Bearing body rcu stop ring YZ/CR/GasGas

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120040000101)

$4.86
12 In Stock

Bearing collar bottom end

Kayaba (KYB) Genuine Motorcycle Parts

Bearing collar bottom end

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120480000201)

$11.22
11 In Stock

Bearing dust seal bottom end YZ All model

Kayaba (KYB) Genuine Motorcycle Parts

Bearing dust seal bottom end YZ All model

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120470000101)

$13.46
8 In Stock

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