Suspension Parts for YAMAHA YZ85 2004 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2004 YAMAHA YZ85. 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 2004 YAMAHA YZ85.

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

0.29

Stock Shock Spring Rate

5

Bike Type

MINI MX

Ideal Rider Weight

40 kg

Engine Specifications

2 Stroke Engine 85 cc

FORKS INFO

Fork Manufacturer

Fork Type
KYB USD 36 mm OD

Fork Dimensions

Compression Nut Torque
25 in-lb (0.29 kgf-m)
Fork Travel
258 mm

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
90 mm

Fork Spring Information

Standard Preload
5 mm

Fork Comments

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

SHOCKS INFO

Shock Manufacturer

Shock Type
KYB 40 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
406 mm
Shock Travel
123 mm
Shock Shaft Outer Diameter
14 mm
Standard Sag
85 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
14

Shock Features

Non-rebuildable
No

Fitment-Matched Suspension Parts by Category

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All Fitment-Matched Suspension Parts

Browse All 133 Products for YAMAHA YZ85 2004
KYB Genuine Single Linear Rate Fork Spring - 32od x 430mm
Kayaba (KYB) Genuine Motorcycle Parts

KYB Genuine Single Linear Rate Fork Spring - 32od x 430mm

Original KYB Motorcycle Suspension Spring
(SKU: 11005-32-430)
From  $129.95
Spring Rate: 0.27 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 0.28 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 0.29 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 0.30 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 0.31 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 0.32 kg/mm
 
$220.00
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 2.6 N/mm
 
$129.95
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 2.8 N/mm
 
$129.95
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 3.0 N/mm
 
$129.95
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
KYB Rear Shock Main Spring - 55mm id x 220 length - Yamaha YZ 80/85 2002+
Kayaba (KYB) Genuine Motorcycle Parts

KYB Rear Shock Main Spring - 55mm id x 220 length - Yamaha YZ 80/85 2002+

Original KYB Motorcycle Suspension Spring
(SKU: 12053-55-220)
From  $226.88
Spring Rate: 43.0 N/mm
 
$226.88
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 45.0 N/mm
 
$288.75
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 47.0 N/mm
 
$229.90
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 49.0 N/mm
 
$229.90
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 51.0 N/mm
 
$229.90
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Spring Rate: 53.0 N/mm
 
$226.88
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
O-ring under spring guide 14.5/10/2.3
Kayaba (KYB) Genuine Motorcycle Parts

O-ring under spring guide 14.5/10/2.3

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110760000101)
 
$4.86
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Ohlins YA1390 STX 46 MX for Yamaha YZ 85
Ohlins

Ohlins YA1390 STX 46 MX for Yamaha YZ 85

Discontinued - Listed for Reference Only
(SKU: YA1390)
Position (Front or Rear):   Rear Mono
Shock Length Eye to Eye (mm):   403.0
Spring Rate:   No Spring/s Supplied
Type Code:   S46PR1C2W
Stroke Metal to Metal (mm):   104.0
Product Family:   STX 46 MX
Notes:   00698- series spring
Fitted Spring:   Sold separately, see notes.
Rec. Ohlins Oil:   01304-
 
$2,249.95
Nil Stock
Piston rod comp rcu YZ85 02-06
Kayaba (KYB) Genuine Motorcycle Parts

Piston rod comp rcu YZ85 02-06

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120350000401)
 
$498.52
Coming Soon
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
Piston rod rebound ff 80/85cc
Kayaba (KYB) Genuine Motorcycle Parts

Piston rod rebound ff 80/85cc

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110340000101)
Inside Diameter d (mm):   5.5
Shaft Length / Height H (mm):   525.0
Outside Ø D (mm):   10.0
 
$192.56
Special Order
Order placed with KYB every week. 3-4 week delivery if in stock at KYB.
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