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 UPGRADE PARTS

20 Parts

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FORK COMPRESSION ADJUSTER ASSY

31 Parts

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SUSPENSION LOCKNUTS & BUSHES

27 Parts

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TOOLS & LUBRICANTS

50 Parts

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All Fitment-Matched Suspension Parts

Browse All 279 Products for YAMAHA YZ450F 2018

48mm KYB SKF Mud Scraper

SKF Sealing

48mm KYB SKF Mud Scraper

Removable Scraper
(SKU: KIT-MS48KM)

$66.00
1 In Stock

KoubaLink Lowering Link Yamaha YZF1 YZ250/450F WR250/450F -38mm Black

KoubaLink

KoubaLink Lowering Link Yamaha YZF1 YZ250/450F WR250/450F -38mm Black

Enhanced Control with Expert Engineering
(SKU: KOUBALINK-YZF-1)

Colour: Black

Seat Height Change (mm): -38

$295.00
2 In Stock

Krooztune KYB HIGH SPEED COMP PISTON

Krooztune

Krooztune KYB HIGH SPEED COMP PISTON

Proudly made in Australia
(SKU: KT-KYBHSCP)

$62.95
3 In Stock

Krooztune KYB 29mm SSS Fork Cartridge Mid-Post Float Tuning Kit

Krooztune

Krooztune KYB 29mm SSS Fork Cartridge Mid-Post Float Tuning Kit

Proudly made in Australia
(SKU: KT-KYBMPKF)

$159.95
1 In Stock

Krooztune Supercross Spring Seat KYB 48mm / Showa 49mm

Krooztune

Krooztune Supercross Spring Seat KYB 48mm / Showa 49mm

Proudly made in Australia
(SKU: KT-SXFFSS)

From $309.95

Bike Type: KYB 48 (25mm cart)

$309.95
6 In Stock

Bike Type: Showa 49

$309.95
6 In Stock

Krooztune 2018-2022 YZF 250/450 Adjustable Performance Rear Suspension Link

Krooztune

Krooztune 2018-2022 YZF 250/450 Adjustable Performance Rear Suspension Link

Proudly made in Australia
(SKU: KT-YAM18PERF)

$264.95
1 In Stock

Krooztune 2005-on WR-F / YZ / YZ-X / YZ-F / YZ-FX Adjustable Rear Lowering Link - 20/30mm

Krooztune

Krooztune 2005-on WR-F / YZ / YZ-X / YZ-F / YZ-FX Adjustable Rear Lowering Link - 20/30mm

Proudly made in Australia
(SKU: KT-YAMLLA-27)

$219.95
4 In Stock

Krooztune YZF WRF 54mm Bladder cap with Schrader

Krooztune

Krooztune YZF WRF 54mm Bladder cap with Schrader

Fits YZF and WR ranges 2018/19 on
(SKU: KT-YZFGASCAP-BL)

$84.95
4 In Stock

48mm KYB Fork Seal and Dust Wiper Set 2pc set , Hi performance seal

Capelli Race

48mm KYB Fork Seal and Dust Wiper Set 2pc set , Hi performance seal

One oil seal and one dust seal, buy 2 sets for one bike
(SKU: KYB48Capset)

Oil Seal Inside Diameter d (mm): 48.0

Oil Seal Outside Ø D1 (mm): 58.7

Oil Seal Height H (mm): 4.9

Dust Wiper Inside Diameter d (mm): 48.0

Dust Wiper Outside Ø D1 (mm): 58.2

Dust Wiper Height H (mm): 9.5

$49.95
116 In Stock

48mm KYB Fork Seal Set 2pc set , Hi performance seal

Capelli Race

48mm KYB Fork Seal Set 2pc set , Hi performance seal

one pair of oil seals only, for one bike
(SKU: KYB48sealset)

Oil Seal Inside Diameter d (mm): 48.0

Oil Seal Outside Ø D1 (mm): 58.7

Oil Seal Height H (mm): 4.9

$49.95
118 In Stock

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