Suspension Parts for YAMAHA YZ450F 2023 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2023 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 2023 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

0.46

Stock Shock Spring Rate

5.81

Bike Type

MX

Ideal Rider Weight

85 kg

Engine Specifications

4 Stroke Engine 449 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

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
3 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
30 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
8
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

Please wait, loading parts....

Please wait, loading parts....

Please wait, loading parts....

Please wait, loading parts....

All Fitment-Matched Suspension Parts

Browse All 177 Products for YAMAHA YZ450F 2023
KYB Genuine Single Linear Rate Fork Spring - 44od x 497mm
Kayaba (KYB) Genuine Motorcycle Parts

KYB Genuine Single Linear Rate Fork Spring - 44od x 497mm

Original KYB Motorcycle Suspension Spring
(SKU: 11005-44-497)
From  $172.79
Spring Rate: 4.8 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 5.0 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 5.2 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 4.0 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 4.2 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 4.4 N/mm
 
$172.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
KYB Rear Shock Main Spring - 64/66mm id x 275 length
Kayaba (KYB) Genuine Motorcycle Parts

KYB Rear Shock Main Spring - 64/66mm id x 275 length

Original KYB Motorcycle Suspension Spring
(SKU: 12053-64-66-275)
From  $405.79
Spring Rate: 60.0 N/mm
 
$405.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 62.0 N/mm
 
$405.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 64.0 N/mm
 
$405.79
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.