Suspension Parts for 2025 BETA RX 450 Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2025 BETA RX 450. 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 2025 BETA RX 450.

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

MX

Ideal Rider Weight

83 kg

FORKS INFO

Fork Manufacturer

Fork Type: KYB USD 48 mm OD

Fork Dimensions

Compression Nut Torque: 24 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 2.5
Oil Quanity: 350cc

Fork Spring Information

Standard Preload: 6 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: 103 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 2.5 Weight
Standard Preload: 24

Shock Features

Non-rebuildable: No

Shock Comments

: Replace alloy shock collars with steel if binding.

Fitment-Matched Suspension Parts by Category

FORK REBUILD KITS

2 Parts

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FORK UPGRADE PARTS

6 Parts

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FORK CARTRIDGE ASSEMBLY PARTS

2 Parts

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FORK SEALS & BUSHES

3 Parts

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SHOCK UPGRADE PARTS

4 Parts

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SHOCK SPRINGS
Ideal Spring Rate for kg: kg/mm ( N/mm)

3 Parts

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SHOCK BLADDER PARTS

3 Parts

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TOOLS & LUBRICANTS

12 Parts

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All Fitment-Matched Suspension Parts

Browse All 39 Products for BETA RX 450 2025

48mm KYB SKF Mud Scraper

SKF Sealing

48mm KYB SKF Mud Scraper

Removable Scraper
(SKU: KIT-MS48KM)

$66.00
4 In Stock

Cylinder head ff bearing press in/out

Kayaba (KYB) Genuine Motorcycle Parts

Cylinder head ff bearing press in/out

Original KYB Motorcycle Suspension Tool
(SKU: 000.0520)

$32.19
1 In Stock

Free piston ff circlip near bushing

Kayaba (KYB) Genuine Motorcycle Parts

Free piston ff circlip near bushing

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110290000201)

$3.74
256 In Stock

Front Fork Bush Cylinder Head 12.5mm

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork Bush Cylinder Head 12.5mm

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 110231000301)

$10.97
19 In Stock

Krooztune KYB 29mm SSS Fork Cartridge Mid-Post Float Tuning Kit

Krooztune

Krooztune KYB 29mm SSS Fork Cartridge Mid-Post Float Tuning Kit

Proudly made in Australia
(SKU: KT-KYBMPKF)

$159.95
8 In Stock

KYB Factory Front Fork Outertube Protection (Pair) KYB 48mm all

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Front Fork Outertube Protection (Pair) KYB 48mm all

Genuine KYB Factory Race Parts
(SKU: 000.0121)

Inside Diameter d (mm): 64.0

Fork Inner Tube Ø d (mm): 48.0

Height H (mm): 27.0

Outside Ø D (mm): 67.5

$64.13
8 In Stock

KYB Factory Gascap KIT 54mm complete YZF/KXF

Kayaba (KYB) Genuine Motorcycle Parts

KYB Factory Gascap KIT 54mm complete YZF/KXF

Genuine KYB Factory Race Parts
(SKU: 160115401101)

$94.38
6 In Stock

KYB Genuine Front Fork Oil 01M - 5 Litres

Kayaba (KYB) Genuine Motorcycle Parts

KYB Genuine Front Fork Oil 01M - 5 Litres

Genuine Kayaba Factory Oil - packaged in Australia
(SKU: 13001005010A)

Pack Size: 5 L Bottle

cSt@40C: 15.6

cSt@100C: 3.5

Viscosity Index: 150

$199.95
55 In Stock

KYB Genuine Rear Shock Oil K2C - 20 Litres

Kayaba (KYB) Genuine Motorcycle Parts

KYB Genuine Rear Shock Oil K2C - 20 Litres

Genuine Kayaba Factory Oil - packaged in Australia
(SKU: 13002020010A)

Pack Size: 20 L Drum

cSt@40C: 11.3

cSt@100C: 4.0

Viscosity Index: 310

$770.00
42 In Stock

KYB Genuine Rear Shock Oil K2C - 5 Litres

Kayaba (KYB) Genuine Motorcycle Parts

KYB Genuine Rear Shock Oil K2C - 5 Litres

Genuine Kayaba Factory Oil - packaged in Australia
(SKU: 13002005010A)

Pack Size: 5 L Bottle

cSt@40C: 11.3

cSt@100C: 4.0

Viscosity Index: 310

$199.95
55 In Stock

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