Suspension Parts for 2018 BETA RR350 4T Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2018 BETA RR350 4T. 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 2018 BETA RR350 4T.

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 350 cc

FORKS INFO

Fork Manufacturer

Fork Type: Sachs 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: No

Fork Oil

Fork Oil Weight: SAE 5
Fork Oil Level: 130 mm

Fork Spring Information

Standard Preload: 10 mm

SHOCKS INFO

Shock Manufacturer

Shock Type: Sachs 46 mm ID

Shock Dimensions

Nitrogen Pressure: 175 psi
Shock Travel: 135 mm
Shock Shaft Outer Diameter: 16 mm
Standard Sag: 100 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 5 Weight
Wheel Travel: 290 mm

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

CHASSIS PARTS

4 Parts

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FORK UPGRADE PARTS

1 Parts

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

2 Parts

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FORK SEALS & BUSHES

5 Parts

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FORK CARTRIDGE ROD PARTS

1 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)

1 Parts

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SHOCK SEAL CASE PARTS

2 Parts

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SHOCK PISTON PARTS

1 Parts

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SUSPENSION LOCKNUTS & BUSHES

1 Parts

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TOOLS & LUBRICANTS

9 Parts

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All Fitment-Matched Suspension Parts

Browse All 29 Products for BETA RR350 4T 2018

Seal hammer 48mm

Kayaba (KYB) Genuine Motorcycle Parts

Seal hammer 48mm

Original KYB Motorcycle Suspension Tool
(SKU: 000.0673)

$144.96
2 In Stock

Xtrig Preload Adjuster BETA 15-18

XTRIG

Xtrig Preload Adjuster BETA 15-18

Quickly adjust shock spring preload
(SKU: 10600001)

Thread Size: M58 x 1.5

$279.95
2 In Stock

Xtrig Preload Adjuster BETA 2Str. + 4Str. 19-

XTRIG

Xtrig Preload Adjuster BETA 2Str. + 4Str. 19-

Quickly adjust shock spring preload
(SKU: 10600004)

$305.00
3 In Stock

Front Fork Piston Metal (Pair) 48mm KYB - WP

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork Piston Metal (Pair) 48mm KYB - WP

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 110034800102)

Inside Diameter d (mm): 46.5

Fork Inner Tube Ø d (mm): 48.0

Height H (mm): 20.0

Outside Ø D (mm): 48.5

Wall Thickness (mm): 1.0

$44.29
77 In Stock

HiCalibre Fork Springs 43.2 x 457 KTM 125 250 2007 950 990

HiCalibre

HiCalibre Fork Springs 43.2 x 457 KTM 125 250 2007 950 990

Proudly made in the USA
(SKU: 19-162)

From $245.00

Spring Rate: 0.60 kg/mm

$245.00
1 In Stock

Spring Rate: 0.64 kg/mm

$245.00
2 In Stock

Spring Rate: 0.46 kg/mm

$245.00
Special Order

Spring Rate: 0.48 kg/mm

$245.00
Special Order

Spring Rate: 0.68 kg/mm

$245.00
Coming Soon

Spring Rate: 0.40 kg/mm

$245.00
Special Order

Spring Rate: 0.36 kg/mm

$245.00
Special Order

Spring Rate: 0.44 kg/mm

$245.00
Special Order

Spring Rate: 0.42 kg/mm

$245.00
Special Order

Spring Rate: 0.38 kg/mm

$245.00
Special Order

Spring Rate: 0.62 kg/mm

$245.00
2 In Stock

Spring Rate: 0.56 kg/mm

$245.00
Special Order

Spring Rate: 0.66 kg/mm

$245.00
Special Order

Spring Rate: 0.58 kg/mm -

$245.00
Special Order

Spring Rate: 0.70 kg/mm

$245.00
Special Order

Spring Rate: 0.54 kg/mm

$245.00
Special Order

Spring Rate: 0.50 kg/mm

$245.00
Special Order

HiCalibre Shock Spring 60 x 260 Common Fitment: Sachs 46 and 50

HiCalibre

HiCalibre Shock Spring 60 x 260 Common Fitment: Sachs 46 and 50

Proudly made in the USA
(SKU: 20-073)

From $245.00

Spring Rate: 6.0 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 5.8 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 6.2 kg/mm
Spring Colour: Black or White

$245.00
Coming Soon

Spring Rate: 5.2 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 6.6 kg/mm
Spring Colour: Black or White

$245.00
Special Order

Spring Rate: 6.4 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 5.6 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 4.8 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 5.4 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 6.8 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 4.6 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 7.4 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 7.8 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 7.6 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 8.0 kg/mm
Spring Colour: Black or White

$245.00
1 In Stock

Spring Rate: 8.4 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 8.2 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 7.2 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 7.0 kg/mm
Spring Colour: Black or White

$245.00
2 In Stock

Spring Rate: 5.0 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 4.4 kg/mm
Spring Colour: Black or White

$245.00
3 In Stock

Spring Rate: 8.6 kg/mm
Spring Colour: Black or White

$245.00
Coming Soon

K-Tech Shock Absorber ReservoirBladder Conversion Sachs 49mm

K-Tech

K-Tech Shock Absorber ReservoirBladder Conversion Sachs 49mm

Sachs 49mm
(SKU: 211-900-125)

$179.95
2 In Stock

Teflon Shaft Bushing - 16 x 18 x 12

Teknik Motorsport

Teflon Shaft Bushing - 16 x 18 x 12

16mm id x 18mm od x 12mm Length
(SKU: 22-076-00)

$2.75
463 In Stock

Shock Oil Seal SACHS 16.00 X 24.50X3.40mm

Capelli Race

Shock Oil Seal SACHS 16.00 X 24.50X3.40mm

(SKU: 22-431-00)

Oil Seal Inside Diameter d (mm): 16.00

Oil Seal Outside Ø D1 (mm): 24.0

Oil Seal Height H (mm): 3.5

$16.50
27 In Stock

WP Fork Spring Guide 48600557S HYDR.STOP L=200 D=31.9 CPL. 07

WP Genuine Parts

WP Fork Spring Guide 48600557S HYDR.STOP L=200 D=31.9 CPL. 07

Fits SACHS fork
(SKU: 24-019-17)

$99.00
1 In Stock

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