BMW R 18 Classic (2025) — Specs
Identity
Manufacturer: BMW
Model: R 18 Classic
Category: Motorcycle
Type: Motorcycle
Years: 2025 →
Engine
Displacement (cc): 1802
Cylinders: 2
Power (hp): 91
Power (kW): 67
Torque (Nm): 158
Dimensions
Overall length: 2380 mm
Overall width: 920 mm
Overall height: 1340 mm
Wheelbase: 1580 mm
Ground clearance: 140 mm
Weight (kg): 369
Seat height (mm): 720
Tank (L): 16
Tires
Front tire: 120/70 R19
Rear tire: 180/65 R16
Front pressure (bar): 2.5
Rear pressure (bar): 2.9
Drivetrain
Final drive: Shaft drive
Ignition
Spark plug: NGK MAR8AI-10DS
Fluids & Filters
Engine oil: SAE15W-50, API SJ
Engine oil (with filter, L): 4
Oil filter: Hiflofiltro HF164
Air filter: OEM air filter
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~266 km on a full tank (16.0 L)
Service
Battery: OEM battery specification
Service interval (km): 10000
Service interval (months): 12
Valve check (km): 24000
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 10,000 km or 12 months, whichever comes first. Valve clearance check every 24,000 km. Engine oil: oil grade SAE15W-50, API SJ, 4 L with filter change. Spark plug: NGK MAR8AI-10DS. Brake fluid: DOT 4. Drive: shaft drive. Tire pressure: front 2.5 bar, rear 2.9 bar (cold). Tire size: front 120/70 R19, rear 180/65 R16. 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: SAE15W-50, API SJ, 4.0 L (with filter)
- OEM OEM recommended engine oil (SAE 15W-50)
- 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 HF164
- Premium Hiflofiltro HF164
- Premium K&N KN-164
Air filter
Spark plug
Spec: NGK MAR8AI-10DS
- OEM NGK MAR8AI-10
- Premium NGK MAR8AIIX-10
- Standard NGK MAR8AI-10
Front brake pads
Spec: EBC FA116
- Premium EBC FA116
Rear brake pads
Spec: EBC FA116
- Premium EBC FA116
Front tire
Spec: 120/70 R19, 2.5 bar
- OEM OEM 120/70 R19
Rear tire
Spec: 180/65 R16, 2.9 bar
- OEM OEM 180/65 R16
Battery
- Premium Yuasa YTX20HL-BS (typical 1300cc+ cruiser/tourer)
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Service interval
Spec: 10 000 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: 24 000 km
Suspension
Spec: 49 mm telescopic fork
- OEM Fork: 49 mm telescopic fork
Drive chain
