Model:  YAMAHA YZ450FX 2018

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

Bike Type

MX

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
300 mm

Fork Features

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
3 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.





























Kayaba (KYB) Genuine Parts

KYB Genuine Front Fork Spring Each - 44mm od x 470 length

44mm od x 470mm free length
(SKU: 11005-44-470)
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
$198.00
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.



Teknik Moto Spring

Teknik Fork Springs 43.5 x 497 (Eibach 963)

Made in The Netherlands to ISO 9001
(SKU: 43.5-497)


Eibach Suspension Technology

Eibach EMS Moto Fork Springs 43.7 x 499 (43.5-497)

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 963)

Eibach Suspension Technology

Eibach EMS Moto Fork Springs 43.6 x 472 (43.8-470)

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 971)














Teknik Motorsport

Outer Guide Bush 48 x 15 x 2.0 Aftermarket

48mm id x 15mm tall x 2.0mm thick
(SKU: 24-570-01)
Inside Diameter d (mm):   48.0
Fork Inner Tube Ø d (mm):   48.0
Height H (mm):   15.0
Outside Ø D (mm):   52.0
Wall Thickness (mm):   2.0
$6.60
653 In Stock

SKF Sealing

SKF KYB Fork Seal Kit 48mm (Dual Comp)

Requires 2 kits for complete fork service.
(SKU: SKF-DUAL-48K)
Colour:   Green/Orange
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
$62.95
34 In Stock

SKF Sealing

SKF 48mm KYB Fork Seal & Wiper Set

Requires 2 kits for complete fork service.
(SKU: SKF48K)
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
63 In Stock

SKF Sealing

SKF 48mm KYB Fork Seal & 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
67 In Stock



Kayaba (KYB) Genuine Parts

Fork Oil Seals Pair - 48 x 58 x 8.5

48mm id x 58mm od x 8.5mm tall
(SKU: 110014800302)
$41.80
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.

Capelli Race

48mm KYB Fork Seal and Dust Wiper Set 2pc set , Hi performance seal

one oil seal and one dust seal, buy 2 sets for one bike
(SKU: KYB48Capset)
Dust Wiper Inside Diameter d (mm):   48.0
Oil Seal Inside Diameter d (mm):   48.0
Dust Wiper Height H (mm):   9.5
Oil Seal Height H (mm):   4.9
Dust Wiper Outside Ø D1 (mm):   58.2
Oil Seal Outside Ø D1 (mm):   58.7
$44.00
Nil Stock
Notify Me




























Kayaba (KYB) Genuine Parts

KYB Genuine O-ring

OEM KYB Japan
(SKU: 150290000701)
$5.54
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.



















Kayaba (KYB) Genuine Parts

Front Fork Inner Tube - YZ250FX 19-

Yamaha 2010-2013 YZ450F & 2019+ YZ250FX
(SKU: 110794807301)
Colour:   Chrome
Fork Inner Tube Ø d (mm):   44.23
Outside Ø D (mm):   48.0
$440.00
1 In Stock












Kayaba (KYB) Genuine Parts

KYB Genuine Innertube STD YZF 2014-

OEM KYB Japan
(SKU: 110794809601)
Colour:   Chrome
Fork Inner Tube Ø d (mm):   44.23
Outside Ø D (mm):   48.0
$282.21
Coming Soon
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.



















Kayaba (KYB) Genuine Parts

KYB Genuine O-ring

OEM KYB Japan
(SKU: 150290000701)
$5.54
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.




Teknik Moto Spring

Teknik Shock Spring 64/66 x 275

Made in The Netherlands to ISO 9001
(SKU: 64_66-275)





Teknik Hard Parts

Bump Stop Rubber 16 x 34 x 59

16mm id x 34mm od x 59mm tall - KYB
(SKU: 22-210-00)
Height H (mm):   59.0
Outside Ø D (mm):   34.0
$22.00
84 In Stock