YAMAHA YZ250X 2017

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

0.43

Bike Type

MX

Ideal Rider Weight

75 kg

Forks Info

Fork Manufacturer

KYB 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
Yes

Fork Oil

Fork Oil Weight
SAE 2.5
Fork Oil Level
350cc mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
7 mm

Fork Comments

Check floating piston for cracking

Shocks Info

Shock Manufacturer

KYB
46 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Shaft Outer Diameter
18 mm
Standard Sag
103 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
24
Wheel Travel
315 mm

Shock Features

Non-rebuildable
No
KYB Genuine Front Fork Spring Each - 44mm od x 454 length

KYB Genuine Front Fork Spring Each - 44mm od x 454 length

44mm od x 454mm free length
(SKU: 11005-44-454)
HiCalibre Fork Springs 43.8 x 453 (Equivalent Eibach 968)

HiCalibre Fork Springs 43.8 x 453 (Equivalent Eibach 968)

43.8mm od x 453mm free length
(SKU: 19-195)
Fork Tube Piston Bushing Pair - 48mm Forks

Fork Tube Piston Bushing Pair - 48mm Forks

OEM KYB
(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
$33.85
 39 In Stock
Outer Guide Bush 48 x 15 x 2.0 Aftermarket

Outer Guide Bush 48 x 15 x 2.0 Aftermarket

48mm id x 15mm tall x 2.0mm thick
(SKU: 24-570-01)
Inside Diameter d (mm):   48.0
Fork Inner Tube Ø d (mm):   48.0
Height H (mm):   15.0
Outside Ø D (mm):   52.0
Wall Thickness (mm):   2.0
$6.60
 722 In Stock
SKF KYB Fork Seal Kit 48mm (DUAL COMP)

SKF KYB Fork Seal Kit 48mm (DUAL COMP)

Requires 2 kits for complete fork service.
(SKU: SKF-DUAL-48K)
Colour:   Green/Orange
Seal Outer Ø D (mm):   58.42
Seal Height H (mm):   8.5
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   4.9
Fork Inner Tube Ø d (mm):   48.0
$62.95
 23 In Stock
SKF 48mm KYB Fork Seal & Wiper Set

SKF 48mm KYB Fork Seal & Wiper Set

Requires 2 kits for complete fork service.
(SKU: SKF48K)
Colour:   Green
Seal Outer Ø D (mm):   58.42
Seal Height H (mm):   8.5
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   4.9
Fork Inner Tube Ø d (mm):   48.0
$59.95
 126 In Stock
SKF 48mm KYB Fork Seal & Wiper Set - Heavy Duty

SKF 48mm KYB Fork Seal & Wiper Set - Heavy Duty

Requires 2 kits for complete fork service.
(SKU: SKF48KHD)
Colour:   Green
Seal Outer Ø D (mm):   58.42
Seal Height H (mm):   8.5
Seal Wiper Outside Ø D1 (mm):   58.70
Seal Wiper Height H1 (mm):   4.9
Fork Inner Tube Ø d (mm):   48.0
$59.95
 41 In Stock
Fork Cap Bleed Valve Bolt

Fork Cap Bleed Valve Bolt

Aluminium Alloy
(SKU: 110090000501)
$8.77
 Coming Soon
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Schrader Air Valve O-Ring

Schrader Air Valve O-Ring

OEM KYB
(SKU: 120120000101)
$5.35
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
O-Ring

O-Ring

OEM KYB
(SKU: 150290000701)
$3.93
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Schrader Air Valve O-Ring

Schrader Air Valve O-Ring

OEM KYB
(SKU: 120120000101)
$5.35
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
O-Ring

O-Ring

OEM KYB
(SKU: 150290000701)
$3.93
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Teknik Shock Spring 59/61 x 270

Teknik Shock Spring 59/61 x 270

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

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

60.6/63.1mm ID x 270mm Free Length
(SKU: 892)
Bump Stop Rubber 18 x 35 x 59

Bump Stop Rubber 18 x 35 x 59

18mm id x 35mm od x 59mm tall - KYB
(SKU: 22-227-00)
Height H (mm):   59.0
Outside Ø D (mm):   35.0
$22.00
 74 In Stock
Schrader Air Valve O-Ring

Schrader Air Valve O-Ring

OEM KYB
(SKU: 120120000101)
$5.35
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Valve Stop Washer

Valve Stop Washer

6mm id x 16mm od x 1.6mm tall
(SKU: 110630000101)
$3.84
 155 In Stock
Schrader Air Valve O-Ring

Schrader Air Valve O-Ring

OEM KYB
(SKU: 120120000101)
$5.35
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
O-Ring

O-Ring

OEM KYB
(SKU: 150290000701)
$3.93
 Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.