Model:  HONDA CRF450R 2025

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

0.5

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 450 cc

FORKS INFO

Fork Manufacturer

Showa USD 49 mm OD

Fork Dimensions

Compression Nut Torque
24 in-lb (0.29 kgf-m)
Fork Travel
310 mm

Fork Features

Preload Adjuster
3 mm Range
Twin Chamber Fork
Yes

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
350cc mm
Oil Quanity
2 Litres

Fork Spring Information

Spring Rate – Claimed
4.8N
Standard Preload
3 mm

SHOCKS INFO

Shock Manufacturer

SHOWA
50 mm ID

Shock Dimensions

Nitrogen Pressure
145 psi
Shock Shaft Outer Diameter
16 mm
Standard Sag
40 mm
Shock Oil
2.5 Weight

Shock Features

Non-rebuildable
No

Shock Comments

Check rebound adjuster.

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