TECHNICAL SPECIFICATIONS

GasGas MC 125 2023 (UE)

2023–2023 MC 125 (2023) EU

125 cc 2T

MotorDataBook

Key specifications

The essentials of this version at a glance.

1.98 US gal
Fuel tank capacity
✓
80/100 - 21 M/C 51M TT
Front tyre size
✓
100/90 - 19 M/C 57M TT
Rear tyre size
✓
1.27 US qt
Coolant capacity
✓
14.5 psi
Front tyre pressure - normal load
✓
14.5 psi
Rear tyre pressure - normal load
✓
DOT 4/DOT 5.1
Brake fluid specification
✓
JASO T903 MA2
Transmission fluid specification
✓
1 items

Transmission & Drivetrain

Transmission fluid specification
JASO T903 MA2 ✓
Aceite del cambio (motor de 2 tiempos).
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 127 Verification: Verified Open document
1 items

Dimensions & Weights

Fuel tank capacity
1.98 US gal ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
7 items

Brakes

Brake fluid specification
DOT 4/DOT 5.1 ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 128 Verification: Verified Open document
Front brake disc diameter
10.24 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
Front brake disc minimum thickness
0.1 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
Rear brake disc diameter
8.66 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
Rear brake disc minimum thickness
0.14 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
Front brake pad minimum thickness
0.04 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 79 Verification: Verified Open document
Rear brake pad minimum thickness
0.04 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 85 Verification: Verified Open document
4 items

Wheels and tyres

Front tyre size
80/100 - 21 M/C 51M TT ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 123 Verification: Verified Open document
Rear tyre size
100/90 - 19 M/C 57M TT ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 123 Verification: Verified Open document
Front tyre pressure - normal load Uso fuera de carretera (todoterreno)
14.5 psi ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
Rear tyre pressure - normal load Uso fuera de carretera (todoterreno)
14.5 psi ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 123 Verification: Verified Open document
5 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: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 123 Verification: Verified Open document
Drive chain slack minimum
2.17 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 67 Verification: Verified Open document
Drive chain slack maximum
2.28 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 67 Verification: Verified Open document
Front axle torque
25.81 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 126 Verification: Verified Open document
Rear axle torque
59 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 126 Verification: Verified Open document
1 items

Engine & Fluids

Coolant capacity
1.27 US qt ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 122 Verification: Verified Open document
2 items

Filters & Service Parts

OEM spark plug reference
NGK BR9 ECMVX ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 118 Verification: Verified Open document
Spark plug gap
0.02 in ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 118 Verification: Verified Open document
2 items

Torque Specifications

Spark plug torque
18.44 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 120 Verification: Verified Open document
Front brake caliper torque
18.44 lb-ft ✓
Sources and verification (1)
Primary source ✓ Official Publisher: GASGAS Motorcycles GmbH (buscador oficial de manuales) Document: MC 125 2023 – Manual de instrucciones, UE en español (23_3215094_es_OM) Reference: 125 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.