YAMAHA WR250Z 1990

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 Shock Spring Rate

5.2

Bike Type

OFFROAD

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 250 cc

Forks Info

Fork Manufacturer

KYB USD 41 mm OD

Fork Dimensions

Compression Nut Torque
48 in-lb (0.56 kgf-m)

Fork Features

Twin Chamber Fork
No

Fork Oil

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

Fork Spring Information

Standard Preload
10 mm

Fork Comments

Oil level set with the gap between the inner and outer fork tube empty.

Shocks Info

Shock Manufacturer

KYB
44 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
442 mm
Shock Travel
115 mm
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
14

Shock Features

Non-rebuildable
No
Outer Guide Bush 41 x 12 x 2.0
Teknik Motorsport

Outer Guide Bush 41 x 12 x 2.0

41mm id x 12mm tall x 2.0mm thick
(SKU: 24-508-00)
Inside Diameter d (mm):   41.0
Fork Inner Tube Ø d (mm):   41.0
Height H (mm):   12.0
Outside Ø D (mm):   45.0
Wall Thickness (mm):   2.0
$22.00
9 In Stock
Teknik Shock Spring 59/61 x 270
Teknik Motorsport

Teknik Shock Spring 59/61 x 270

59/61mm id x 270mm free length
(SKU: 59_61-270)
Eibach EMS Moto Shock Spring Kit 60.6/63.1 x 270 (59_61-270 20-085)
Eibach Suspension Technology

Eibach EMS Moto Shock Spring Kit 60.6/63.1 x 270 (59_61-270 20-085)

60.6/63.1mm ID x 270mm Free Length
(SKU: 892)
Spring Rate: 7.1 kg/mm
$249.94
Special Order
Shipped 2-3 Days. Stock at Eibach Australia.
Shipped 2-3 Days. Stock at Eibach Australia.