YAMAHA YZ490 1985
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
0.325
Stock Shock Spring Rate
4.8
Bike Type
MX
Ideal Rider Weight
75 kg
Engine Specifications
2 Stroke Engine 490 cc
Forks Info
Fork Manufacturer
- KYB Conventional 43 mm OD
Fork Oil
- Fork Oil Weight
- SAE 7.5
- Fork Oil Level
- 130 mm
- Oil Quanity
- 2 Litres
Fork Spring Information
- Standard Preload
- 10 mm
Shocks Info
Shock Manufacturer
- Soqi
- 46 mm ID
Shock Dimensions
- Nitrogen Pressure
- 175 psi
- Shock Length (Eye to Eye)
- 465 mm
- Shock Travel
- 121 mm
- Shock Shaft Outer Diameter
- 14 mm
- Standard Sag
- 103 mm
- Shaft Nut Torque
- 25 ft-lbs (34 NM)
- Shock Oil
- 5 Weight
Shock Comments
- SEND to Teknik 16mm shaft conversion (call)
HiCalibre Fork Springs 36 x 505
36mm od x 505mm free length(SKU: 19-105)
$245.00
Nil Stock
$245.00
Nil Stock
$245.00
Nil Stock
$245.00
Nil Stock
$245.00
Nil Stock
$245.00
Nil Stock
$245.00
Nil Stock
KYB Genuine Front Fork Piston Metal (Pair) 43mm KYB
OEM KYB Japan(SKU: 110034300102)
Inside Diameter d (mm): 41.5
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 20.0
Outside Ø D (mm): 43.5
Wall Thickness (mm): 1.0
$48.93
12 In Stock
12 In Stock
KYB Genuine Front Fork Slide Metal (Pair) 43mm KYB
OEM KYB Japan(SKU: 110044300102)
Inside Diameter d (mm): 43.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 12.0
Outside Ø D (mm): 47.0
Wall Thickness (mm): 2.0
$48.93
9 In Stock
9 In Stock
Fork Oil Seal - 43 x 55 x 10.5/12
43mm id x 55mm od x 10.5/12mm tall - KYB Conventional(SKU: 24-866-00)
$24.88
18 In Stock
18 In Stock
InnTeck Inner Slide Fork Bush KAYABA 43mm **can use KYB 110034300102**
KAYABA 43mm 42x44x20(SKU: SKTE43K)
Inside Diameter d (mm): 42.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 20.0
Outside Ø D (mm): 44.0
Wall Thickness (mm): 1.0
$14.99
25 In Stock
25 In Stock
InnTeck Outer Guide Fork Bush KAYABA 43mm **can use KYB 110044300102**
KAYABA 43mm 43x47x12(SKU: SKTI43K)
Inside Diameter d (mm): 43.0
Fork Inner Tube Ø d (mm): 43.0
Height H (mm): 12.0
Outside Ø D (mm): 47.0
Wall Thickness (mm): 2.0
$14.99
22 In Stock
22 In Stock
All Balls Rear Shock Seal Kit - YZ100/125/250/IT175 80-81
14 ID 46 OD(SKU: 37-1116)
Shock Bore Ø D (mm): 46.0
Shock Shaft Ø D (mm): 14.0
Height H (mm): 29.0
$86.85
Coming Soon
Coming Soon
Tools
7
$199.00
2 In Stock
2 In Stock
$136.40
2 In Stock
2 In Stock
$88.00
Nil Stock
Nil Stock
