Discover suspension parts guaranteed to fit the 2021 YAMAHA WR450F. 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 2021 YAMAHA WR450F.

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

0.48

Stock Shock Spring Rate

5.6kg

Bike Type

OFFROAD

Ideal Rider Weight

75 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: 315 mm

Fork Features

Preload Adjuster: 7 mm Range
Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 2.5
Fork Oil Level: 200cc/350cc mm
Oil Quanity: 2 Litres

Fork Spring Information

Spring Rate – Claimed: 0.48
Standard Preload: 7 mm

Fork Comments

: Check floating piston for cracking

SHOCKS INFO

Shock Manufacturer

KYB: 50 mm ID

Shock Dimensions

Nitrogen Pressure: 142 psi
Shock Length (Eye to Eye): 464 mm
Shock Travel: 120 mm
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: 15
Wheel Travel: 318 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

30 Parts

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SUSPENSION LOCKNUTS & BUSHES

26 Parts

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TOOLS & LUBRICANTS

39 Parts

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All Fitment-Matched Suspension Parts

Browse All 226 Products for YAMAHA WR450F 2021

Krooztune KYB HIGH SPEED COMP PISTON

Proudly made in Australia
(SKU: KT-KYBHSCP)

$62.95
Nil Stock

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

Proudly made in Australia
(SKU: KT-KYBMPKF)

$159.95
Nil Stock

Krooztune YZF WRF 54mm Bladder cap with Schrader

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

$84.95
Coming Soon

Teknik Shock Absorber Piston Bush (50x11.50x1.25) -KYB

Super Low Friction
(SKU: LFPB-50115125)

$25.85
Nil Stock

SKF 48mm KYB Fork Seal and Wiper Set - Heavy Duty

Requires 2 kits for complete fork service.
(SKU: SKF48KHD)

Colour: Green

Seal Outer Ø D (mm): 58.42

Seal Height H (mm): 8.5

Seal Wiper Outside Ø D1 (mm): 58.70

Seal Wiper Height H1 (mm): 4.9

Fork Inner Tube Ø d (mm): 48.0

$59.95
Coming Soon

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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Suspension Parts for YAMAHA WR450F 2021 – Shocks, Forks & Upgrades

Bike-Specific Suspension Specifications & Setup Information

CALCULATE SPRING RATES

BIKE DETAILS

FORKS INFO

Fork Manufacturer

Fork Dimensions

Fork Features

Fork Oil

Fork Spring Information

Fork Comments

SHOCKS INFO

Shock Manufacturer

Shock Dimensions

Shock Features

Shock Comments

Fitment-Matched Suspension Parts by Category

All Fitment-Matched Suspension Parts

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Terms & Conditions

Privacy Policy

1. WHAT WE COLLECT

2. WHAT WE DO WITH THE INFORMATION WE GATHER

3. SECURITY

4. HOW WE USE COOKIES

5. CONTROLLING YOUR PERSONAL INFORMATION