Suspension Parts for 2019 YAMAHA YZ85LW (Big Wheel) Motorbikes | Guaranteed Fitment

Discover suspension parts guaranteed to fit the 2019 YAMAHA YZ85LW (Big Wheel). 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 2019 YAMAHA YZ85LW (Big Wheel).

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

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
Wheel Travel: 287 mm

Shock Features

Non-rebuildable: No

Fitment-Matched Suspension Parts by Category

FORK & SHOCK UPGRADE PACKS

4 Parts

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FORK UPGRADE PARTS

6 Parts

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FORK SPRINGS
Ideal Fork Rate for kg: kg/mm ( N/mm)

3 Parts

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FORK SEALS & BUSHES

8 Parts

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FORK COMPRESSION ADJUSTER ASSY

5 Parts

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FORK O-RINGS

4 Parts

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SHOCK UPGRADE PARTS

4 Parts

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SHOCK SPRING RETAINERS /BUMPERS

3 Parts

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SHOCK BLADDER PARTS

5 Parts

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SHOCK SEAL CASE PARTS

9 Parts

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SHOCK SHAFT PARTS

8 Parts

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SHOCK BODY PARTS

15 Parts

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SHOCK PISTON PARTS

7 Parts

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SUSPENSION LOCKNUTS & BUSHES

11 Parts

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TOOLS & LUBRICANTS

24 Parts

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All Fitment-Matched Suspension Parts

Browse All 103 Products for YAMAHA YZ85LW (Big Wheel) 2019

Kayaba (KYB) Genuine Motorcycle Parts

Gascap STD

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120114000401)

$62.06
2 In Stock

Stop ring rcu 40mm

Kayaba (KYB) Genuine Motorcycle Parts

Stop ring rcu 40mm

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120154000101)

$5.24
15 In Stock

Front Fork Snap Ring Outertube KYB 36mm

Kayaba (KYB) Genuine Motorcycle Parts

Front Fork Snap Ring Outertube KYB 36mm

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 120156000101)

$6.97
14 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 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

Rear Shock Lock Nut KYB M12

Kayaba (KYB) Genuine Motorcycle Parts

Rear Shock Lock Nut KYB M12

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120181200401)

$9.47
3550 In Stock

Piston complete rcu 40mm YZ85

Kayaba (KYB) Genuine Motorcycle Parts

Piston complete rcu 40mm YZ85

Original KYB Japan Motorcycle Suspension Parts
(SKU: 120204000101)

$179.47
2 In Stock

Rear Shock Piston Ring KYB 40mm

Kayaba (KYB) Genuine Motorcycle Parts

Rear Shock Piston Ring KYB 40mm

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 120214000401)

Height H (mm): 11.3

Outside Ø D (mm): 40.0

Wall Thickness (mm): 1.25

$31.90
5 In Stock

Rear Shock O-Ring Piston KYB 40mm

Kayaba (KYB) Genuine Motorcycle Parts

Rear Shock O-Ring Piston KYB 40mm

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 120224000101)

$4.86
13 In Stock

Rear Shock Seal Head KYB 40/14

Kayaba (KYB) Genuine Motorcycle Parts

Rear Shock Seal Head KYB 40/14

OEM KYB Japan Motorcycle Suspension Service Parts
(SKU: 120244000101)

Shock Bore Ø D (mm): 40.0

Shock Shaft Ø D (mm): 14.0

Height H (mm): 21.5

$147.06
17 In Stock

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