| Specification | Detail |
|---|---|
| Production Years | 1969 – 1973 |
| Engine Type | Air-cooled, four-stroke Boxer twin |
| Oil Type | SAE 20W-50 Mineral-based |
| Tire Size | F: 3.25 S 19 / R: 4.00 S 18 |
| Spark Plugs | Bosch W7DC / NGK BP6ES |
Historical Engineering Highlight: The BMW R 60/5 (0250) holds a prestigious place in motorcycling history as part of the first series produced entirely at BMW’s dedicated motorcycle plant in Berlin-Spandau. This shift from Munich marked the beginning of a new era of industrial precision for the “Slash-5” series, introducing the legendary lightweight frame and high-pressure lubrication system that defined BMW reliability for decades.
Technical Review: The 600cc Boxer
The R 60/5 occupies the “sweet spot” of the Slash-5 lineup. While the R 75/5 offered more power, the R 60/5 was prized for its smooth power delivery and lower vibration levels. Utilizing Bing slide carburetors, the 0250 variant provides a visceral, mechanical throttle response that modern fuel-injected bikes cannot replicate. Its duplex cradle frame and telescopic forks were revolutionary for the time, offering stable handling that remains competent even by modern touring standards.
Maintenance Guide & Fluid Capacities
Maintaining a classic BMW requires adherence to specific mineral-based lubrication standards to protect the vintage metallurgy of the boxer engine.
Lubrication System
- Engine Oil: Use high-quality SAE 20W-50 Mineral-based oil. Modern synthetics are generally discouraged due to seal compatibility and the need for ZDDP additives for flat-tappet protection.
- Capacity: 2.0 Liters for a standard oil change; 2.25 Liters for a completely dry engine rebuild.
Ignition & Electrical
The electrical system on the R 60/5 is robust but requires periodic inspection of the points and condenser. For optimal combustion, use Bosch W7DC or NGK BP6ES spark plugs. The gap must be precisely set between 0.60 mm – 0.70 mm to ensure reliable starting and smooth idling.
Tires and Chassis
Proper tire inflation is critical for the stability of the R 60/5’s characteristic narrow-rim wheels. The factory specifications are as follows:
- Front (3.25 S 19): 1.9 bar (27.5 psi) Solo / 2.1 bar (30.5 psi) Max Load.
- Rear (4.00 S 18): 2.1 bar (30.5 psi) Solo / 2.5 bar (36.2 psi) Max Load.
Essential Service Data
For battery replacements, the 0250 model typically utilizes the DIN 518 14 or DIN 528 16 standards. Ensure the battery breather tube is correctly routed to prevent acid corrosion on the frame—a common issue with vintage airheads.
At MotoSpecsLab, we rate the R 60/5 as one of the most maintainable classic motorcycles ever built. Its “open” architecture allows the home mechanic to perform valve adjustments and oil changes with basic hand tools, preserving a piece of Berlin engineering history for the next generation.