Suspension Parts for BMW G 650 X Challenge 2008 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2008 BMW G 650 X Challenge. 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 BMW G 650 X Challenge.

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

Rider Weight

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

0.44

Stock Shock Spring Rate

Spring test results. 90psi=7.4kg/mm. 100psi=8.3kg/mm. 110psi= 9.2kg/mm. 120psi=9.8kg/mm

Bike Type

TRAIL

Engine Specifications

4 Stroke Engine 652 cc

FORKS INFO

Fork Manufacturer

Marzocchi USD 45 mm OD

Fork Dimensions

Compression Nut Torque
25 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
120 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm

Fork Comments

Steel Cartridge cannot be revalved. Suggest fitting internals from Marzocchi Shiver from MX or Enduro models

SHOCKS INFO

Shock Dimensions

Shock Shaft Outer Diameter
N/A Air Shock mm
Wheel Travel
270 mm

Shock Comments

Stock shock is 342mm eye to eye. Use between a 7.4 and 10.0kg/mm spring on replacement shock

Fitment-Matched Suspension Parts by Category

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All Fitment-Matched Suspension Parts

Browse All 15 Products for BMW G 650 X Challenge 2008
HiCalibre

HiCalibre Fork Springs 40.2 x 462 Common Fitment Showa 45mm USD Marzocchi 45mm USD

Proudly made in the USA
(SKU: 19-145)
$245.00
Special Order
SPECIAL ORDER Item from USA. 4-6 weeks delivery
SPECIAL ORDER Item from USA. 4-6 weeks delivery
$245.00
Special Order
SPECIAL ORDER Item from USA. 4-6 weeks delivery
SPECIAL ORDER Item from USA. 4-6 weeks delivery
$245.00
Special Order
SPECIAL ORDER Item from USA. 4-6 weeks delivery
SPECIAL ORDER Item from USA. 4-6 weeks delivery
$245.00
Special Order
SPECIAL ORDER Item from USA. 4-6 weeks delivery
SPECIAL ORDER Item from USA. 4-6 weeks delivery
$245.00
Special Order
SPECIAL ORDER Item from USA. 4-6 weeks delivery
SPECIAL ORDER Item from USA. 4-6 weeks delivery

Teknik Motorsport

Inner Slide Bush 45 x 20 x 1.5

45mm od x 20mm tall x 1.5mm thick
(SKU: 24-640-00)
Inside Diameter d (mm):   42.0
Fork Inner Tube Ø d (mm):   45.0
Height H (mm):   20.0
Outside Ø D (mm):   45.0
Wall Thickness (mm):   1.5
$38.50
22 In Stock

Teknik Motorsport

Inner Slide Bush 45 x 20 x 1.5

45mm od x 20mm tall x 1.5mm thick
(SKU: 24-640-01)
Inside Diameter d (mm):   42.0
Fork Inner Tube Ø d (mm):   45.0
Height H (mm):   20.0
Outside Ø D (mm):   45.0
Wall Thickness (mm):   1.5
$38.50
1 In Stock






SKF Sealing

SKF 45mm Marzocchi Fork Seal and Wiper Set

Requires 2 kits for complete fork service.
(SKU: SKF45M)
Colour:   Green
Seal Outer Ø D (mm):   58.30
Seal Height H (mm):   11.0
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   5.5
Fork Inner Tube Ø d (mm):   45.0
$59.95
8 In Stock

SKF Sealing

SKF 45mm Marzocchi Fork Seal and Wiper Set - Heavy Duty

Requires 2 kits for complete fork service.
(SKU: SKF45MHD)
Colour:   Green
Seal Outer Ø D (mm):   58.30
Seal Height H (mm):   11.0
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   5.5
Fork Inner Tube Ø d (mm):   45.0
$59.95
1 In Stock