Suspension Parts for 2021 HONDA CRF450RX Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2021 HONDA CRF450RX. 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 HONDA CRF450RX.

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

Bike Type

OFFROAD

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 450 cc

FORKS INFO

Fork Manufacturer

Fork Type: Showa USD 49 mm OD

Fork Dimensions

Compression Nut Torque: 24 in-lb (0.29 kgf-m)
Fork Travel: 305 mm

Fork Features

Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 5

Fork Spring Information

Spring Rate – Claimed: 4.8N

SHOCKS INFO

Shock Manufacturer

Shock Type: SHOWA 50 mm ID

Shock Dimensions

Nitrogen Pressure: 145 psi
Shock Shaft Outer Diameter: 16 mm
Standard Sag: 40 mm
Shock Oil: 2.5 Weight

Shock Features

Non-rebuildable: No

Shock Comments

: Check rebound adjuster.

Fitment-Matched Suspension Parts by Category

FORK SEALS & BUSHES

18 Parts

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FORK COMPRESSION ADJUSTER ASSY

21 Parts

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FORK CARTRIDGE ROD PARTS

20 Parts

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SHOCK SEAL CASE PARTS

21 Parts

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SUSPENSION LOCKNUTS & BUSHES

22 Parts

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TOOLS & LUBRICANTS

19 Parts

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All Fitment-Matched Suspension Parts

Browse All 180 Products for HONDA CRF450RX 2021

Teknik Schrader Valve Cap

Teknik Motorsport

Teknik Schrader Valve Cap

(SKU: 30-652-00)

$3.99
638 In Stock

Teknik Shock Spring 64/66 x 240 (Eibach 881)

Teknik Motorsport

Teknik Shock Spring 64/66 x 240 (Eibach 881)

Made in The Netherlands to ISO 9001
(SKU: 64_66-240)

From $235.00

Spring Rate: 44.0 N/mm
Spring Colour: White

$235.00

Notify Me

Spring Rate: 46.0 N/mm
Spring Colour: White

$235.00

Spring Rate: 48.0 N/mm
Spring Colour: White

$235.00
55 In Stock

Spring Rate: 50.0 N/mm
Spring Colour: White

$235.00
37 In Stock

Spring Rate: 52.0 N/mm
Spring Colour: White

$235.00
54 In Stock

Spring Rate: 54.0 N/mm
Spring Colour: White

$235.00
19 In Stock

Spring Rate: 56.0 N/mm
Spring Colour: White

$235.00
2 In Stock

Spring Rate: 58.0 N/mm
Spring Colour: White

$235.00

Spring Rate: 60.0 N/mm
Spring Colour: White

$235.00

Spring Rate: 62.0 N/mm
Spring Colour: White

$235.00

Spring Rate: 64.0 N/mm
Spring Colour: White

$235.00

WORKS Axle Holder Left CNC Black / Honda CRF 2017-26

WORKS by Genuine Parts Europe

WORKS Axle Holder Left CNC Black / Honda CRF 2017-26

Showa Genuine Motorcycle Suspension Parts
(SKU: F448HON01)

$660.00
3 In Stock

WORKS Axle Holder Right CNC Black / Honda CRF 2017-26

WORKS by Genuine Parts Europe

WORKS Axle Holder Right CNC Black / Honda CRF 2017-26

Showa Genuine Motorcycle Suspension Parts
(SKU: F449HON01)

$660.00
3 In Stock

WORKS Hand clicker adjuster COMP. by GPE (CRF 250 15-24 / CRF 450 17-24 / KXF 450 15-24 / RMZ 450 15-24)

WORKS by Genuine Parts Europe

WORKS Hand clicker adjuster COMP. by GPE (CRF 250 15-24 / CRF 450 17-24 / KXF 450 15-24 / RMZ 450 15-24)

Showa Genuine Motorcycle Suspension Parts
(SKU: GPECLI001)

$129.36
5 In Stock

WORKS Piston rod comp. 18mm Honda CRF 250/450 R 17-26

WORKS by Genuine Parts Europe

WORKS Piston rod comp. 18mm Honda CRF 250/450 R 17-26

Showa Genuine Motorcycle Suspension Parts
(SKU: R12000005)

$1,452.00
1 In Stock

WORKS Slide pipe Ø49 L=595mm RAINBOW/ 18-24 CRF 250 / 17-24 CRF 450 / 18-24 RMZ 450

WORKS by Genuine Parts Europe

WORKS Slide pipe Ø49 L=595mm RAINBOW/ 18-24 CRF 250 / 17-24 CRF 450 / 18-24 RMZ 450

Showa Genuine Motorcycle Suspension Parts
(SKU: F30504909)

Colour: Blue

Fork Inner Tube Ø d (mm): 46.0

Fork Inner Tube Length (mm): 595

Outside Ø D (mm): 49.0

$726.00
2 In Stock

Zeta Racing Rear Shock Suspension lowering Kit. 46 and 50mm KYB Showa Sachs

DRC Zeta Hardware

Zeta Racing Rear Shock Suspension lowering Kit. 46 and 50mm KYB Showa Sachs

(SKU: ZE56-322)

From $49.95

Colour: Blue
Shock Bore Ø D (mm): 46.0

$49.95
2 In Stock

Colour: Red
Shock Bore Ø D (mm): 50.0

$60.50
2 In Stock

Eibach EMS Moto Front Fork Spring Kit. 44.7 x 472 Showa 49 USD Honda CRF 250 450 2017-2024 (45-470)

Eibach Suspension Technology

Eibach EMS Moto Front Fork Spring Kit. 44.7 x 472 Showa 49 USD Honda CRF 250 450 2017-2024 (45-470)

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 962)

From $249.94

Spring Rate: 0.45 kg/mm

$249.94
1 In Stock

Spring Rate: 0.47 kg/mm

$249.94
2 In Stock

Spring Rate: 0.51 kg/mm

$249.94
2 In Stock

Spring Rate: 0.53 kg/mm

$249.94
2 In Stock

Eibach EMS Moto Front Fork Springs 45.00 mm O.D. x 472 mm Showa 49 USD

Eibach Suspension Technology

Eibach EMS Moto Front Fork Springs 45.00 mm O.D. x 472 mm Showa 49 USD

Made in the USA (QS9000) or Germany (ISO16949)
(SKU: 903)

From $249.94

Spring Rate: 0.38 kg/mm

$249.94
1 In Stock

Spring Rate: 0.42 kg/mm

$249.94
1 In Stock

Spring Rate: 0.44 kg/mm

$249.94
2 In Stock

Spring Rate: 0.46 kg/mm

$249.94
2 In Stock

Spring Rate: 0.48 kg/mm

$249.94
1 In Stock

Spring Rate: 0.50 kg/mm

$249.94
2 In Stock

Spring Rate: 0.52 kg/mm

$249.94
1 In Stock

Spring Rate: 0.54 kg/mm

$249.94
9 In Stock

Spring Rate: 0.56 kg/mm

$249.94
3 In Stock

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