Suspension Parts for YAMAHA YZ450F 2018 – Shocks, Forks & Upgrades

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

Rider Weight

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

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
Fork Oil Level
360cc mm
Oil Quanity
2 Litres

Fork Spring Information

Spring Rate – Claimed
0.46
Standard Preload
5 mm

Fork Comments

Check floating piston for cracking

SHOCKS INFO

Shock Manufacturer

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

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All Fitment-Matched Suspension Parts

Browse All 278 Products for YAMAHA YZ450F 2018

Ohlins

Ohlins FCX2203 TTX 22 Fork Cartridge Front for Yamaha YZ 250F, YZ 450F

Ohlins Suspension - Engineered for Performance
(SKU: FCX2203)
Position (Front or Rear):   Front cartridge
Type Code:   T22DR1C1
Fork Length (mm):   953.0
Stroke Metal to Metal (mm):   301.0
Product Family:   TTX 22
Notes:   08765- spring series *Replaces FCX 1203*
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,436.32
Special Order
Active- Available to order. 6-7 weeks if nil stock

Ohlins

Ohlins FFX0203 RXF 48 S Fork Complete Front for Yamaha YZ 250F, YZ 450F

Discontinued - Listed for Reference Only
(SKU: FFX0203)
Position (Front or Rear):   Front Fork
Spring Rate Standard:   4.7 N/mm
spring rate:   4.7 N/mm
Type Code:   T22DR1C1
Fork Length (mm):   946.0
Stroke Metal to Metal (mm):   301.0
Product Family:   RXF 48 S
Notes:   08765- spring series *Replaces FGYA 2196*
Fitted Spring::   08765-47
Rec. Ohlins Oil:   01330-
$5,599.95
Nil Stock
Notify Me

Ohlins

Ohlins FFX1203 RXF 48 S Fork Complete Front for Yamaha YZ 250F, YZ 450F

Ohlins Suspension - Engineered for Performance
(SKU: FFX1203)
Position (Front or Rear):   Front Fork
Spring Rate Standard:   4.7 N/mm
spring rate:   4.7 N/mm
Type Code:   T22DR1C1
Fork Length (mm):   946.0
Stroke Metal to Metal (mm):   301.0
Product Family:   RXF 48 S
Notes:   08765- spring series *FFX 0203*
Fitted Spring::   08765-47
Rec. Ohlins Oil:   01330-
$5,599.95
Coming Soon
8 Arriving Prior to 30 December 2025

Ohlins

Ohlins FFX2203 RXF 48 S Fork Complete Front for Yamaha YZ 250F, YZ 450F

Ohlins Suspension - Engineered for Performance
(SKU: FFX2203)
Position (Front or Rear):   Front Fork
Spring Rate Standard:   4.7 N/mm
Type Code:   T22DR1C1
Fork Length (mm):   946.0
Stroke Metal to Metal (mm):   301.0
Product Family:   RXF 48 S
Notes:   08765- spring series *Replaces FFX 1203*
Fitted Spring::   08765-47
Rec. Ohlins Oil:   01330-
$5,090.86
Special Order
Active- Available to order. 6-7 weeks if nil stock

Ohlins

Ohlins FGYA1794 TTX 22 Fork Cartridge Front for Yamaha YZ 450F

Discontinued - Listed for Reference Only
(SKU: FGYA1794)
Position (Front or Rear):   Front cartridge
spring rate:   No Spring/s Supplied
Type Code:   TTX Cartridge kit
Stroke Metal to Metal (mm):   308.0
Product Family:   TTX 22
Notes:   08765- series springs
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,679.95
Nil Stock
Notify Me

Ohlins

Ohlins FGYA1796 RXF 48 S Fork Complete Front for Yamaha YZ 250F, YZ 450F

Discontinued - Listed for Reference Only
(SKU: FGYA1796)
Position (Front or Rear):   Front Fork
Spring Rate Standard:   4.7 N/mm
spring rate:   4.7 N/mm
Type Code:   RXF 48
Fork Length (mm):   950.0
Stroke Metal to Metal (mm):   306.0
Product Family:   RXF 48 S
Notes:   08765- series springs
Fitted Spring::   02428-47
Rec. Ohlins Oil:   01330-
$5,599.95
Nil Stock
Notify Me

Ohlins

Ohlins FGYA1894 TTX 22 Fork Cartridge Front for Yamaha YZ 450F

Discontinued - Listed for Reference Only
(SKU: FGYA1894)
Position (Front or Rear):   Front cartridge
spring rate:   No Spring/s Supplied
Type Code:   TTX Cartridge kit
Stroke Metal to Metal (mm):   298.0
Product Family:   TTX 22
Notes:   08765- series springs
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,679.95
Nil Stock
Notify Me

Ohlins

Ohlins FGYA1896 RXF 48 S Fork Complete Front for Yamaha YZ 250F, YZ 450F

Discontinued - Listed for Reference Only
(SKU: FGYA1896)
Position (Front or Rear):   Front Fork
Spring Rate Standard:   4.7 N/mm
spring rate:   4.7 N/mm
Type Code:   RXF 48
Fork Length (mm):   950.0
Stroke Metal to Metal (mm):   306.0
Product Family:   RXF 48 S
Notes:   08765- series springs
Fitted Spring::   02428-47
Rec. Ohlins Oil:   01330-
$5,599.95
Nil Stock
Notify Me

Ohlins

Ohlins FGYA1994 TTX 22 Fork Cartridge Front for Yamaha YZ 450F

Discontinued - Listed for Reference Only
(SKU: FGYA1994)
Position (Front or Rear):   Front cartridge
spring rate:   No Spring/s Supplied
Type Code:   TTX Cartridge kit
Stroke Metal to Metal (mm):   298.0
Product Family:   TTX 22
Notes:   08765- series springs
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,679.95
Nil Stock
Notify Me