Suspension Parts for 2021 FANTIC XXF450 Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2021 FANTIC XXF450. 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 FANTIC XXF450.

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 Shock Spring Rate

5.81

Bike Type

MX

Ideal Rider Weight

85 kg

FORKS INFO

Fork Manufacturer

Fork Type: KYB USD 48 mm OD

Fork Dimensions

Compression Nut Torque: 24 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 2.5
Oil Quanity: 350cc

Fork Spring Information

Standard Preload: 6 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

32 Parts

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FORK CARTRIDGE ROD PARTS

23 Parts

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SUSPENSION LOCKNUTS & BUSHES

29 Parts

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TOOLS & LUBRICANTS

48 Parts

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All Fitment-Matched Suspension Parts

Browse All 228 Products for FANTIC XXF450 2021

KYB Factory Kit Fork YZF250/450 14-26

KYB Factory Kit Fork YZF250/450 14-26

Genuine KYB Factory Race Parts
(SKU: 162019000501)

$6,534.00
0% OFF RRP $6,563.70
Custom Order

KYB Factory Kit Shock YZF450 18-22 / YZF250 19-23

KYB Factory Kit Shock YZF450 18-22 / YZF250 19-23

Genuine KYB Factory Race Parts
(SKU: 162018001601)

$3,980.90
0% OFF RRP $3,999.00
Custom Order

KYB Factory Outertube only Kashima 566mm YZF

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Outertube only Kashima 566mm YZF

Genuine KYB Factory Race Parts
(SKU: 160754804201)

$720.36
Coming Soon

KYB Factory Rubber under M6 securing screw

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Rubber under M6 securing screw

Genuine KYB Factory Race Parts
(SKU: 161000000101)

$1.45
Special Order

KYB Factory Shockbody KIT Kashima YZF450 18-23/ YZF250 19-24

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Shockbody KIT Kashima YZF450 18-23/ YZF250 19-24

Genuine KYB Factory Race Parts
(SKU: 160090008401)

$1,040.60
Special Order

KYB Factory Spring collar complete 28mm Factory Aluminium

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Spring collar complete 28mm Factory Aluminium

Genuine KYB Factory Race Parts
(SKU: 160190000101)

$102.85
Special Order

KYB Factory Spring retainer KIT alu 50mm YZ450F10- YZ250F14-

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Spring retainer KIT alu 50mm YZ450F10- YZ250F14-

Genuine KYB Factory Race Parts
(SKU: 72070012)

$84.70
Special Order

KYB Factory Valve Stopper ff 37mm

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Valve Stopper ff 37mm

Genuine KYB Factory Race Parts
(SKU: 000.0872)

$5.08
Special Order

KYB shock spring 50mm 260mm 54N

Kayaba (KYB) Genuine Motorcycle Parts

KYB shock spring 50mm 260mm 54N

Original KYB Motorcycle Suspension Spring
(SKU: 120535000101)

Spring Rate: 54.0 N/mm

$375.10
8% OFF RRP $405.79
Special Order

Nitrogen filling tool

Kayaba (KYB) Genuine Motorcycle Parts

Nitrogen filling tool

Original KYB Motorcycle Suspension Tool
(SKU: 150360000101)

$128.74
Special Order

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