Suspension Parts for 2004 YAMAHA YZ450F Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2004 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 2004 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

0.46

Stock Shock Spring Rate

5.3

Bike Type

MX

Ideal Rider Weight

75 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: 295 mm

Fork Features

Twin Chamber Fork: No

Fork Oil

Fork Oil Weight: SAE 2.5
Fork Oil Level: 125 mm

Fork Spring Information

Standard Preload: 7 mm

SHOCKS INFO

Shock Manufacturer

Shock Type: KYB 46 mm ID

Shock Dimensions

Nitrogen Pressure: 142 psi
Shock Length (Eye to Eye): 491 mm
Shock Travel: 136 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: 11

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

FORK SEALS & BUSHES

14 Parts

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FORK COMPRESSION ADJUSTER ASSY

18 Parts

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FORK O-RINGS

12 Parts

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SHOCK SEAL CASE PARTS

14 Parts

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SHOCK SHAFT PARTS

17 Parts

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SHOCK BODY PARTS

17 Parts

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SUSPENSION LOCKNUTS & BUSHES

23 Parts

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TOOLS & LUBRICANTS

36 Parts

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All Fitment-Matched Suspension Parts

Browse All 160 Products for YAMAHA YZ450F 2004

KYB High Speed Adjuster Spring Long SDEHSAL

Suspension Direct International (SDI)

KYB High Speed Adjuster Spring Long SDEHSAL

(SKU: 30-002-16)

$60.50
1 In Stock

1mm Shock Lowering Stop Washer

Suspension Direct International (SDI)

1mm Shock Lowering Stop Washer

(SKU: 30-002-20)

$35.27
1 In Stock

Yamalink Lowering Link 2002-2004 YZ 250F/450F -35mm

Yamalink

Yamalink Lowering Link 2002-2004 YZ 250F/450F -35mm

Yamaha 2002-2004 YZ 250F/450F
(SKU: 30-006-29)

Seat Height Change (mm): -35

$259.00
3 In Stock

Fork Preload Spacer 43.5 x 5.0

Teknik Motorsport

Fork Preload Spacer 43.5 x 5.0

43.5mm od x 5.0mm thick - Nylon
(SKU: 30-130-01)

$6.59
892 In Stock

Fork Preload Spacer 43.5 x 10.0

Teknik Motorsport

Fork Preload Spacer 43.5 x 10.0

43.5mm od x 10.0mm thick - Nylon
(SKU: 30-130-02)

$6.59
998 In Stock

Teknik Schrader Valve Cap

Teknik Motorsport

Teknik Schrader Valve Cap

(SKU: 30-652-00)

$3.99
818 In Stock

All Balls Rear Shock Seal Kit - KX125/250/500/RM/WR250/450

All Balls

All Balls Rear Shock Seal Kit - KX125/250/500/RM/WR250/450

16 ID 46OD
(SKU: 37-1002)

Shock Bore Ø D (mm): 46.0

Shock Shaft Ø D (mm): 16.0

Height H (mm): 23.0

$95.00
2 In Stock

Teknik Fork Springs 43.2 x 485

Teknik Moto Springs

Teknik Fork Springs 43.2 x 485

Made in The Netherlands to ISO 9001
(SKU: 43.2-485)

From $220.00

Spring Rate: 3.8 N/mm

$220.00
Nil Stock

Notify Me

Spring Rate: 4.0 N/mm

$220.00
Nil Stock

Spring Rate: 4.2 N/mm

$220.00
Nil Stock

Spring Rate: 4.4 N/mm

$220.00
Nil Stock

Spring Rate: 4.6 N/mm

$220.00
Nil Stock

Spring Rate: 4.8 N/mm

$220.00
Nil Stock

Spring Rate: 5.0 N/mm

$220.00
Nil Stock

Spring Rate: 5.2 N/mm

$220.00
Nil Stock

Teknik Shock Spring 59/61 x 270

Teknik Moto Springs

Teknik Shock Spring 59/61 x 270

Made in The Netherlands to ISO 9001
(SKU: 59_61-270)

From $235.00

Spring Rate and Colour: 44.0 N/mm Linear | White

$235.00
17 In Stock

Spring Rate and Colour: 46.0 N/mm Linear | White

$235.00

Spring Rate and Colour: 48.0 N/mm Linear | White

$235.00
Nil Stock

Spring Rate and Colour: 50.0 N/mm Linear | White

$235.00
20 In Stock

Spring Rate and Colour: 52.0 N/mm Linear | White

$235.00
3 In Stock

Spring Rate and Colour: 54.0 N/mm Linear | White

$235.00
4 In Stock

Spring Rate and Colour: 56.0 N/mm Linear | White

$235.00

Spring Rate and Colour: 58.0 N/mm Linear | White

$235.00
5 In Stock

Spring Rate and Colour: 60.0 N/mm Linear | White

$235.00
45 In Stock

Spring Rate and Colour: 62.0 N/mm Linear | White

$235.00
41 In Stock

Spring Rate and Colour: 42.0 N/mm Linear | White

$235.00
16 In Stock

Xtrig Holeshot 54mm KYB / SHOWA 48mm Fork

XTRIG

Xtrig Holeshot 54mm KYB / SHOWA 48mm Fork

Holeshot with one snap-in position
(SKU: 70100003)

Colour: X-Trig Brown

$160.00
1 In Stock

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