Honda MSX 125 GROM (EURO 5) (2021) — Specs
Identity
Manufacturer: Honda
Model: MSX 125 GROM (EURO 5)
Category: Motorcycle
Type: Motorcycle
Years: 2021 →
Engine
Displacement (cc): 124
Cylinders: 1
Power (hp): 10
Power (kW): 7.4
Torque (Nm): 11
Dimensions
Overall length: 1710 mm
Overall width: 755 mm
Overall height: 1030 mm
Wheelbase: 1200 mm
Ground clearance: 180 mm
Weight (kg): 103
Seat height (mm): 761
Tank (L): 6
Tires
Front tire: 120/70-12
Rear tire: 130/70-12
Front pressure (bar): 2
Rear pressure (bar): 2
Drivetrain
Drive chain: 420 chain, 108 links
Sprockets (front / rear): 15 / 38
Ignition
Spark plug: NGK CPR7EA-9S
Fluids & Filters
Engine oil: 10W-30, API SG
Engine oil (with filter, L): 0.9
Oil filter: Hiflofiltro HF117
Air filter: Hiflofiltro HFA1209
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~240 km on a full tank (6.0 L)
Service
Battery: YTX4L-BS
Service interval (km): 6000
Service interval (months): 12
Valve check (km): 12000
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 6,000 km or 12 months, whichever comes first. Valve clearance check every 12,000 km. Valve clearance — intake cold 0.08 ± 0.02, exhaust cold 0.20 ± 0.02. Engine oil: oil grade 10W-30, API SG, 0.9 L with filter change. Spark plug: NGK CPR7EA-9S. Brake fluid: DOT 4. Chain: 108 links, sprockets 15/38 teeth. Tire pressure: front 2 bar, rear 2 bar (cold). Tire size: front 120/70-12, rear 130/70-12. Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: SAE 10W-30, 0.9 L (with filter)
- OEM OEM recommended engine oil
- Premium Motul 7100 4T (100% Synthetic, Ester)
- Premium Motul 5100 4T Technosynthese (Semi-Synthetic)
Which Motul for this bike?
| Motul 7100 4T ✓ | Motul 5100 4T | |
|---|---|---|
| Product | Motul 7100 4T — 100% fully synthetic | Motul 5100 4T — semi-synthetic |
| Best for | Sport, Naked, Adventure (600cc+), track | Standard, Cruiser, Scooter, daily use |
| RPM protection | Excellent — ester base, stable under load | Good — for normal riding conditions |
- Standard Repsol Moto Racing 4T (Synthetic)
- Standard Elf Moto 4 Tech (Semi-Synthetic)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Hiflofiltro HF117
- Premium Hiflofiltro HF117
- Premium K&N KN-117
Air filter
Spec: Hiflofiltro HFA1209
- Standard Hiflofiltro HFA1209
Spark plug
Spec: NGK CPR7EA-9, gap 0.8-0.9 mm
- OEM NGK CPR7EA-9
- Premium NGK CPR7EAIX-9
- Standard NGK CPR7EA-9
Front brake pads
Spec: OEM front pad (EBC equivalent: FA85HH)
- Premium EBC FA85HH
- Standard EBC FA85 (organic)
Rear brake pads
Spec: OEM rear pad (EBC equivalent: FA85HH)
- Premium EBC FA85HH
- Standard EBC FA85 (organic)
Drive chain
Spec: 108 links | Sprockets 15/38 teeth / 108 links
Front tire
Spec: 120/70-12, 2.0 bar
- OEM OEM 120/70-12
Rear tire
Spec: 130/70-12, 2.0 bar
- OEM OEM 130/70-12
Battery
Spec: OEM battery: Yuasa YTX4L-BS
- Premium Yuasa YTX5L-BS or YT4B-BS (typical 50-125cc)
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Service interval
Spec: 6 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: 12 000 km
- OEM Intake clearance: cold 0.08 ± 0.02
- OEM Exhaust clearance: cold 0.20 ± 0.02
Suspension
Spec: 31 mm USD fork / 221 ml
- OEM Fork: 31 mm USD fork
- OEM Fork oil grade: 221 ml
