Suspension Parts for 2008 KTM 990 SM Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2008 KTM 990 SM. 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 2008 KTM 990 SM.

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

Stock Fork Spring Rate

0.65

Stock Shock Spring Rate

130N

Bike Type

MOTARD

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 1000 cc

FORKS INFO

Fork Manufacturer

: WP USD 48 mm OD

Fork Features

Twin Chamber Fork: No

Fork Oil

Fork Oil Level: 110 mm

SHOCKS INFO

Shock Manufacturer

WP: 46 mm ID

Shock Dimensions

Nitrogen Pressure: 150 psi
Shock Length (Eye to Eye): 380 mm
Shock Travel: 45 mm
Shock Shaft Outer Diameter: 18 mm
Standard Sag: 85 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 5 Weight
Standard Preload: 6

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

FORK REBUILD KITS

6 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

10 Parts

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FORK COMPRESSION ADJUSTER ASSY

1 Parts

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FORK UPPER & LOWER TUBE PARTS

1 Parts

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SHOCK UPGRADE PARTS

5 Parts

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SHOCK SPRING RETAINERS /BUMPERS

1 Parts

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SHOCK BLADDER PARTS

3 Parts

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SHOCK SEAL CASE PARTS

6 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

15 Parts

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All Fitment-Matched Suspension Parts

Browse All 46 Products for KTM 990 SM 2008

WP Shock Clevis Jam Nut Socket

Motion Pro

WP Shock Clevis Jam Nut Socket

Reaches the shaft jam nut in WP
(SKU: 08-0730)

$79.75
3 In Stock

Fork Tubes NOK Oil Seals Pair - 48mm WP

Kayaba (KYB) Genuine Motorcycle Parts

Fork Tubes NOK Oil Seals Pair - 48mm WP

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 110010000302)

$51.19
47 In Stock

HiCalibre Fork Springs 43 x 505 (Eibach 974) WP 48 USD OC

HiCalibre

HiCalibre Fork Springs 43 x 505 (Eibach 974) WP 48 USD OC

Proudly made in the USA
(SKU: 19-190)

From $245.00

spring rate: 0.36 kg/mm

$245.00
Special Order

SPECIAL ORDER Item from USA. 4-6 weeks delivery

SPECIAL ORDER Item from USA. 4-6 weeks delivery

spring rate: 0.38 kg/mm

$245.00
Special Order

spring rate: 0.40 kg/mm

$245.00
1 In Stock

spring rate: 0.42 kg/mm

$245.00
3 In Stock

spring rate: 0.44 kg/mm

$245.00
Special Order

spring rate: 0.46 kg/mm

$245.00
Special Order

spring rate: 0.48 kg/mm

$245.00
Special Order

spring rate: 0.50 kg/mm

$245.00
Special Order

spring rate: 0.52 kg/mm

$245.00
Special Order

spring rate: 0.54 kg/mm

$245.00
Special Order

spring rate: 0.70 kg/mm

$245.00
1 In Stock

spring rate: 0.68 kg/mm

$245.00
1 In Stock

spring rate: 0.66 kg/mm

$245.00
1 In Stock

spring rate: 0.64 kg/mm

$245.00
Special Order

spring rate: 0.62 kg/mm

$245.00
Special Order

spring rate: 0.60 kg/mm

$245.00
1 In Stock

spring rate: 0.58 kg/mm

$245.00
1 In Stock

spring rate: 0.56 kg/mm

$245.00
1 In Stock

RCU RESERVOIR BLADDER CONVERSION 49.00mm SACHS

K-Tech

RCU RESERVOIR BLADDER CONVERSION 49.00mm SACHS

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

$179.95
2 In Stock

Teflon Shaft Bushing - 18 x 20 x 12

Teknik Motorsport

Teflon Shaft Bushing - 18 x 20 x 12

18mm id x 20mm od x 12mm Length
(SKU: 22-080-01)

$2.75
91 In Stock

Bump Stop Rubber 18 x 45 x 40 (WP 50180276)

Teknik Motorsport

Bump Stop Rubber 18 x 45 x 40 (WP 50180276)

18mm id x 45mm od x 40mm tall - WP
(SKU: 22-288-00)

Height H (mm): 40.0

Outside Ø D (mm): 45.0

$22.00
562 In Stock

Shock Oil Seal Quad Ring 18 x 2.62 Suits Ohlins and WP

Capelli Race

Shock Oil Seal Quad Ring 18 x 2.62 Suits Ohlins and WP

18mm id x 2.62mm thick - Quad Ring
(SKU: 22-402-00)

$18.98
25 In Stock

Nitrogen Shock Filling Valve M5

Teknik Motorsport

Nitrogen Shock Filling Valve M5

Standard M5 0.8mm thread - WP replacement
(SKU: 22-600-00)

$20.00
4 In Stock

WP Regas Valve (M5x0.8 Schrader)

Teknik Motorsport

WP Regas Valve (M5x0.8 Schrader)

Suits WP Shocks
(SKU: 22-600-09)

$30.80
228 In Stock

48mm WP Stainless Steel Fork Seal Clip replaces WP 48600070

Teknik Motorsport

48mm WP Stainless Steel Fork Seal Clip replaces WP 48600070

fits all WP 48mm forks
(SKU: 24-750-14)

$22.00
39 In Stock

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