TECHNICAL SPECIFICATIONS

Husqvarna FX 450 2025 (EE. UU.)

2025–2025 FX 450 (2025) US

450 cc

MotorDataBook

Key specifications

The essentials of this version at a glance.

80/100 - 21 51M TL
Front tyre size
✓
110/100 - 18 TL
Rear tyre size
✓
10W/50
Engine oil viscosity
✓
1.27 US qt
Engine oil capacity with filter
✓
2 Ah
Battery capacity
✓
Protección anticongelante como mínimo hasta −25 °C
Coolant specification
✓
1 US qt
Coolant capacity
✓
Batería de iones de litio
Battery technology
✓
7 items

Brakes

Brake fluid specification
DOT 4 / DOT 5.1 ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 173 Verification: Verified Open document
Front brake disc diameter
10.24 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 155 Verification: Verified Open document
Front brake disc minimum thickness
0.1 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 155 Verification: Verified Open document
Rear brake disc diameter
8.66 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 155 Verification: Verified Open document
Rear brake disc minimum thickness
0.14 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 155 Verification: Verified Open document
Front brake pad minimum thickness
0.04 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 104 Verification: Verified Open document
Rear brake pad minimum thickness
0.04 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 111 Verification: Verified Open document
2 items

Wheels and tyres

Front tyre size
80/100 - 21 51M TL ✓
El manual da el tamaño según la versión; se toma la fila «FX 450».
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 156 Verification: Verified Open document
Rear tyre size
110/100 - 18 TL ✓
El manual da el tamaño según la versión; se toma la fila «FX 450».
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 156 Verification: Verified Open document
9 items

Motorcycle Specific

Drive chain size
5/8 x 1/4" ✓
Paso y ancho interior de la cadena en pulgadas, tal como los da el manual.
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 155 Verification: Verified Open document
Drive chain slack minimum
2.28 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 91 Verification: Verified Open document
Drive chain slack maximum
2.4 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 91 Verification: Verified Open document
Intake valve clearance minimum
0 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 153 Verification: Verified Open document
Intake valve clearance maximum
0.01 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 153 Verification: Verified Open document
Exhaust valve clearance minimum
0 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 153 Verification: Verified Open document
Exhaust valve clearance maximum
0.01 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 153 Verification: Verified Open document
Front axle torque
25.81 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 166 Verification: Verified Open document
Rear axle torque
59 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 167 Verification: Verified Open document
4 items

Engine & Fluids

Engine oil viscosity
10W/50 ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 154 Verification: Verified Open document
Engine oil capacity with filter Cambio de aceite y de filtro (el procedimiento del manual incluye siempre el filtro)
1.27 US qt ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 154 Verification: Verified Open document
Coolant specification
Protección anticongelante como mínimo hasta −25 °C ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 173 Verification: Verified Open document
Coolant capacity
1 US qt ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 154 Verification: Verified Open document
2 items

Filters & Service Parts

OEM spark plug reference
NGK LMAR9AI-10 ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 154 Verification: Verified Open document
Spark plug gap
0.04 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 154 Verification: Verified Open document
3 items

Electrical & Battery

12 V battery nominal voltage
12 V ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 156 Verification: Verified Open document
Battery capacity
2 Ah ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 156 Verification: Verified Open document
Battery technology
Batería de iones de litio ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 156 Verification: Verified Open document
3 items

Torque Specifications

Engine oil drain plug torque
14.75 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 170 Verification: Verified Open document
Spark plug torque
7.38 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 170 Verification: Verified Open document
Front brake caliper torque
18.44 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: Husqvarna Motorcycles GmbH (buscador oficial de manuales) Document: FC 450 2025 – Manual de instrucciones, UE en español (25_3402805_es_BA) Reference: 165 Verification: Verified Open document

How we handle technical data

MotorDataBook prioritises official documentation and shows conditions, notes and traceability whenever a figure needs context. Unconfirmed values should not be presented as facts.