Yamaha XSR 125 (2025) — Specs
Identity
Manufacturer: Yamaha
Model: XSR 125
Category: Motorcycle
Type: Motorcycle
Years: 2025 →
Engine
Displacement (cc): 124
Cylinders: 1
Power (hp): 15
Power (kW): 11
Dimensions
Overall length: 1950 mm
Overall width: 720 mm
Overall height: 1110 mm
Wheelbase: 1340 mm
Ground clearance: 150 mm
Weight (kg): 140
Seat height (mm): 815
Tank (L): 10
Tires
Front pressure (bar): 1.8
Rear pressure (bar): 2
Drivetrain
Drive chain: 420 chain
Ignition
Spark plug: NGK MR8E9
Plug gap: 0.8-0.9 mm
Fluids & Filters
Engine oil: SAE10W-40, API SG
Engine oil (with filter, L): 0.95
Engine oil (without filter, L): 0.85
Oil filter: Hiflofiltro HF143
Air filter: OEM air filter
Coolant (L): 0.64
Brake fluid: DOT 4
Fuel consumption
Estimated: 2.5 L/100 km
Estimated range: ~400 km on a full tank (10.0 L)
Note: real-world ±15-30% depending on riding style
Service
Battery: OEM battery specification
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. Engine oil: oil grade SAE10W-40, API SG, 0.95 L with filter change, 0.85 L without filter change. Spark plug: NGK MR8E9 (gap 0.8-0.9 mm). Brake fluid: DOT 4. Coolant capacity: 0.64 L. Chain: chain drive. Tire pressure: front 1.8 bar, rear 2 bar (cold). 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: SAE10W-40, API SG, 0.95 L (with filter), 0.85 L (without filter)
- OEM OEM recommended engine oil (SAE 10W-40)
- 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 HF143
- Premium Hiflofiltro HF143
- Premium K&N KN-143
Air filter
Spark plug
Spec: NGK MR8E9, gap 0.8-0.9 mm
- OEM NGK MR8E9
- Premium NGK MR8E9IX
- Standard NGK MR8E9
Front brake pads
Spec: EBC FA464
- Premium EBC FA464
Rear brake pads
Spec: EBC FA464
- Premium EBC FA464
Drive chain
Spec: chain drive
Front tire
Spec: 1.8 bar
Rear tire
Spec: 2.0 bar
Battery
- Premium Yuasa YTX5L-BS
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Spec: 0.64 L coolant capacity
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
Suspension
Spec: 37 mm USD fork
- OEM Fork: 37 mm USD fork
