YAMAHA YZ125 2010

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

0.4

Stock Shock Spring Rate

4.6

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 125 cc

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
8 mm

Fork Comments

Check floating piston for cracking

Shocks Info

Shock Manufacturer

KYB
46 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
494 mm
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

Shock Features

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

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

44mm od x 454mm free length
(SKU: 11005-44-454)
Spring Rate: 4.5 N/mm
$132.95
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Spring Rate: 4.0 N/mm
$150.21
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Spring Rate: 4.4 N/mm
$150.21
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Spring Rate: 5.0 N/mm
$150.21
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Spring Rate: 4.2 N/mm
$150.21
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
HiCalibre Fork Springs 43.8 x 453 (Equivalent Eibach 968)
HiCalibre

HiCalibre Fork Springs 43.8 x 453 (Equivalent Eibach 968)

43.8mm od x 453mm free length
(SKU: 19-195)
Eibach EMS Moto Fork Springs 44.0 x 455 (KYB 48 19-195)
Eibach Suspension Technology

Eibach EMS Moto Fork Springs 44.0 x 455 (KYB 48 19-195)

44.0mm OD x 455mm Free Length
(SKU: 968)
KYB Genuine Front Fork Slide Metal (Pair) 48mm KYB
Kayaba (KYB) Genuine Parts

KYB Genuine Front Fork Slide Metal (Pair) 48mm KYB

OEM KYB Japan
(SKU: 110044800202)
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
$48.93
47 In Stock
Outer Guide Bush 48 x 15 x 2.0 Aftermarket
Teknik Motorsport

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
692 In Stock
48mm KYB Fork Seal and Dust Wiper Set 2pc set , Hi performance seal
Capelli Race

48mm KYB Fork Seal and Dust Wiper Set 2pc set , Hi performance seal

one oil seal and one dust seal, buy 2 sets for one bike
(SKU: KYB48Capset)
Dust Wiper Inside Diameter d (mm):   48.0
Oil Seal Inside Diameter d (mm):   48.0
Dust Wiper Height H (mm):   9.5
Oil Seal Height H (mm):   4.9
Dust Wiper Outside Ø D1 (mm):   58.2
Oil Seal Outside Ø D1 (mm):   58.7
$44.00
59 In Stock
SKF KYB Fork Seal Kit 48mm (Dual Comp)
SKF Sealing

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
2 In Stock
SKF 48mm KYB Fork Seal & Wiper Set
SKF Sealing

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
56 In Stock
SKF 48mm KYB Fork Seal & Wiper Set - Heavy Duty
SKF Sealing

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
24 In Stock
Fork Oil Seals Pair - 48 x 58 x 8.5
Kayaba (KYB) Genuine Parts

Fork Oil Seals Pair - 48 x 58 x 8.5

48mm id x 58mm od x 8.5mm tall
(SKU: 110014800302)
$41.80
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
KYB Genuine O-ring
Kayaba (KYB) Genuine Parts

KYB Genuine O-ring

OEM KYB Japan
(SKU: 150290000701)
$5.54
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.
KYB Genuine Piston rod rebound ff YZ08
Kayaba (KYB) Genuine Parts

KYB Genuine Piston rod rebound ff YZ08

OEM KYB Japan
(SKU: 110340001701)
Inside Diameter d (mm):   5.5
Shaft Length / Height H (mm):   397.0
Outside Ø D (mm):   12.5
$175.81
5 In Stock
KYB Genuine O-ring
Kayaba (KYB) Genuine Parts

KYB Genuine O-ring

OEM KYB Japan
(SKU: 150290000701)
$5.54
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 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.
Bump Stop Rubber 18 x 35 x 59
Factory Racing

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
52 In Stock
KYB Genuine O-ring
Kayaba (KYB) Genuine Parts

KYB Genuine O-ring

OEM KYB Japan
(SKU: 150290000701)
$5.54
Special Order
Order placed with KYB every week. 2-3 week delivery if in stock at KYB.