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 UPGRADE PARTS

9 Parts

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FORK SPRINGS
Ideal Fork Rate for kg: kg/mm ( N/mm)

7 Parts

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FORK CARTRIDGE ASSEMBLY PARTS

10 Parts

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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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FORK UPPER & LOWER TUBE PARTS

12 Parts

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FORK O-RINGS

10 Parts

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SHOCK UPGRADE PARTS

4 Parts

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SHOCK BLADDER PARTS

7 Parts

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SHOCK SEAL CASE PARTS

21 Parts

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SHOCK SHAFT PARTS

12 Parts

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SHOCK BODY PARTS

10 Parts

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SUSPENSION LOCKNUTS & BUSHES

22 Parts

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PERFORMANCE COATINGS

5 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

Krooztune Supercross Spring Seat KYB 48mm / Showa 49mm

Krooztune

Krooztune Supercross Spring Seat KYB 48mm / Showa 49mm

Proudly made in Australia
(SKU: KT-SXFFSS)

From $309.95

Bike Type: KYB 48 (25mm cart)

$309.95
5 In Stock

Bike Type: Showa 49

$309.95
6 In Stock

M12 x 1.25 Thin Self Locking Steel Insert Fujilok

Fuji Seimitsu Co Ltd

M12 x 1.25 Thin Self Locking Steel Insert Fujilok

Self Locking Steel Insert Fujilok
(SKU: 22-625-03)

$3.99
3832 In Stock

Ohlins TTX Cartridge Kit FCX 0202 Honda CRF 250R/450R, Suzuki RM-Z450, and Kawasaki KX 450

Ohlins

Ohlins TTX Cartridge Kit FCX 0202 Honda CRF 250R/450R, Suzuki RM-Z450, and Kawasaki KX 450

(SKU: FCX0202)

Position (Front or Rear): Front cartridge

Spring Rate: No Spring/s Supplied

Type Code: T22DR1C1

Fork Length (mm): 950.0

Stroke Metal to Metal (mm): 299.0

Product Family: TTX 22

Notes: 08431- spring series *Replaces FCX 202-21*

Fitted Spring: Sold separately. See notes.

Rec. Ohlins Oil: 01330-

$1,339.98
50% OFF RRP $2,679.95
11 In Stock

Piston rod rebound 14mm SHOWA Hard Anodised

Lainer Suspension

Piston rod rebound 14mm SHOWA Hard Anodised

Replace scratched worn damper shafts
(SKU: SHOWA49_ASTA-14)

From $140.00

Shaft Length / Height H (mm): 401.0
Outside Ø D (mm): 14.0

$140.00
29 In Stock

Shaft Length / Height H (mm): 390.0
Outside Ø D (mm): 14.0

$140.00
2 In Stock

Shaft Length / Height H (mm): 398.0
Outside Ø D (mm): 14.0

$140.00
4 In Stock

Shaft Length / Height H (mm): 395.0
Outside Ø D (mm): 14.0

$140.00
2 In Stock

SDI Front Fork Spring Perches Holes (Pair) Showa 49mm

Suspension Direct International (SDI)

SDI Front Fork Spring Perches Holes (Pair) Showa 49mm

CRF250 450 2017- KX450 2019- RMZ450
(SKU: SDETCV25-Set)

$261.95
3 In Stock

Shock Oil/Dust Seal Set 16 x 28 x 5

Showa Genuine Parts

Shock Oil/Dust Seal Set 16 x 28 x 5

16mm id x 28mm od x 5mm thick - Showa
(SKU: 22-413-00)

$60.01
19 In Stock

Showa Genuine Parts Adjust rod B

Showa Genuine Parts

Showa Genuine Parts Adjust rod B

Showa Genuine Motorcycle Suspension Parts
(SKU: FK5000001)

$13.20
8 In Stock

Showa Genuine Parts Air Valve

Showa Genuine Parts

Showa Genuine Parts Air Valve

Showa Genuine Motorcycle Suspension Parts
(SKU: R45500001)

$21.12
21 In Stock

Showa Genuine Parts Air Valve Core

Showa Genuine Parts

Showa Genuine Parts Air Valve Core

Showa Genuine Motorcycle Suspension Parts
(SKU: R46800001)

$10.56
39 In Stock

Showa Genuine Parts Back Up Ring C

Showa Genuine Parts

Showa Genuine Parts Back Up Ring C

Showa Genuine Motorcycle Suspension Parts
(SKU: FS0000001)

$31.68
13 In Stock

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