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

0.45

Stock Shock Spring Rate

5.7

Bike Type

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 250 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

Preload Adjuster: 0 mm Range
Twin Chamber Fork: Yes

Fork Oil

Fork Oil Weight: SAE 2.5
Fork Oil Level: 350cc mm
Oil Quanity: 2 Litres

Fork Spring Information

Spring Rate – Claimed: 0.45
Standard Preload: 3 mm

Fork Comments

: Check floating piston for cracking

SHOCKS INFO

Shock Manufacturer

KYB: 50 mm ID

Shock Dimensions

Nitrogen Pressure: 142 psi
Shock Travel: 136 mm
Shock Shaft Outer Diameter: 16 mm
Standard Sag: 103 mm
Shaft Nut Torque: 25 ft-lbs (34 NM)
Shock Oil: 2.5 Weight
Standard Preload: 10
Wheel Travel: 300 mm

Shock Features

Non-rebuildable: No

Shock Spring Information

Spring Rate - Claimed: 56N kg/mm

Shock Comments

: Replace alloy shock collars with steel if binding.

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

7 Parts

Please wait, loading parts....

FORK COMPRESSION ADJUSTER ASSY

37 Parts

Please wait, loading parts....

SHOCK SPRINGS
Ideal Spring Rate for kg: kg/mm ( N/mm)

1 Parts

Please wait, loading parts....

SHOCK SPRING RETAINERS /BUMPERS

5 Parts

Please wait, loading parts....

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Model: YAMAHA YZ250FX 2017

CALCULATE SPRING RATES

BIKE DETAILS