Suspension Parts for 1999 YAMAHA YZ80 Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 1999 YAMAHA YZ80. 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 1999 YAMAHA YZ80.

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

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

4.8

Bike Type

MINI MX

Ideal Rider Weight

40 kg

Engine Specifications

2 Stroke Engine 80 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: 256 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): 403 mm
Shock Travel: 110 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

FORK CARTRIDGE ASSEMBLY PARTS

4 Parts

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FORK SEALS & BUSHES

8 Parts

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FORK COMPRESSION ADJUSTER ASSY

11 Parts

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FORK O-RINGS

7 Parts

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SHOCK BLADDER PARTS

5 Parts

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SHOCK SEAL CASE PARTS

10 Parts

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SHOCK BODY PARTS

8 Parts

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SHOCK PISTON PARTS

6 Parts

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SUSPENSION LOCKNUTS & BUSHES

14 Parts

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TOOLS & LUBRICANTS

21 Parts

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All Fitment-Matched Suspension Parts

Browse All 84 Products for YAMAHA YZ80 1999

KYB Grease 250ml

Kayaba (KYB) Genuine Motorcycle Parts

KYB Grease 250ml

Original KYB Suspension Lubricants
(SKU: 130062500101)

$60.50
18 In Stock

KYB Grease 5ml strip of 5pcs

Kayaba (KYB) Genuine Motorcycle Parts

KYB Grease 5ml strip of 5pcs

Original KYB Suspension Lubricants
(SKU: 130060050105)

$32.67
168 In Stock

Nut for spring rcu 40mm bottom

Kayaba (KYB) Genuine Motorcycle Parts

Nut for spring rcu 40mm bottom

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120174000101)

$64.19
2 In Stock

Nut for spring rcu 40mm top

Kayaba (KYB) Genuine Motorcycle Parts

Nut for spring rcu 40mm top

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120164000101)

$64.19
2 In Stock

Nut top of piston rod ff 80/85cc

Kayaba (KYB) Genuine Motorcycle Parts

Nut top of piston rod ff 80/85cc

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110160000101)

Thread Size: M10 x 1.0

$18.70
2 In Stock

O-ring base valve ff till 95

Kayaba (KYB) Genuine Motorcycle Parts

O-ring base valve ff till 95

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110800000201)

$4.86
4 In Stock

O-ring compression piston 20mm

Kayaba (KYB) Genuine Motorcycle Parts

O-ring compression piston 20mm

Original KYB Japan Motorcycle Suspension Parts
(SKU: 110622000101)

$4.86
15 In Stock

Piston ring mounting set FF 20mm

Kayaba (KYB) Genuine Motorcycle Parts

Piston ring mounting set FF 20mm

Original KYB Motorcycle Suspension Tool
(SKU: 000.0626)

$191.18
1 In Stock

Piston ring mounting set RCU 40mm

Kayaba (KYB) Genuine Motorcycle Parts

Piston ring mounting set RCU 40mm

Original KYB Motorcycle Suspension Tool
(SKU: 000.0624)

$191.18
1 In Stock

Kayaba (KYB) Genuine Motorcycle Parts

Pull rod ff

Original KYB Motorcycle Suspension Tool
(SKU: 000.0656)

$96.80
2 In Stock

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