| Attribute | Specification |
|---|---|
| Model Series | 247E (Air-cooled Boxer) |
| Production Years | 1993 – 1995 |
| Engine Oil | SAE 20W-50 Mineral (2.5 L) |
| Spark Plugs | Bosch W7DC / NGK BP6ES (0.6-0.7mm gap) |
| Tire Dimensions | F: 110/80-18 | R: 140/80-17 |
| Battery | 12V 19Ah (Type 51913) |
The BMW R 80 R Mystic represents a unique historical pivot point for BMW Motorrad; it was the first “factory custom” designed under the direction of David Robb, intended to give the aging air-cooled Type 247 boxer engine a stylish, modern roadster farewell before the ‘Oilhead’ R 1100 series took full command of the market. Unlike the standard R 80 R, the Mystic featured a lower seat height, a unique subframe, and a distinctive ‘Marrakesh Red’ or ‘Mystic Red’ aesthetic that bridged the gap between heritage and 90s modernism.
Engineering Overview: The 247E Chassis
Technically, the Mystic is a hybrid of BMW’s best components from the early 90s. It utilizes the robust double-loop steel tube frame and the sophisticated Paralever rear swingarm sourced from the GS dual-sport line. This setup significantly reduced the ‘shaft-jacking’ effect common in earlier boxers, providing the Mystic with surprisingly neutral handling and stability under acceleration. The front end is supported by 41mm Showa forks, which were a significant upgrade in rigidity over the earlier 36mm units found on 1980s models.
Maintenance Guide & Technical Requirements
Engine Lubrication
As a traditional air-cooled unit, the 247E engine relies heavily on oil for both lubrication and thermal management. We recommend SAE 20W-50 Mineral oil. Synthetic oils are often too ‘thin’ for the tolerances of this vintage engine and can lead to seal weeping. The capacity is 2.5 liters including the filter change. Ensure the API rating is SF or SG to provide the necessary ZDDP levels for flat-tappet protection.
Ignition System
The Mystic uses a maintenance-friendly electronic ignition. However, the choice of spark plug is critical for smooth idling and cold starts. The Bosch W7DC or NGK BP6ES are the standard choices. A gap of 0.6 mm to 0.7 mm must be maintained to ensure consistent combustion cycles across the wide 800cc cylinders.
Tires and Handling
The Mystic runs a 110/80-18 front and a 140/80-17 rear. This combination provides a nimble contact patch. Maintaining correct pressure is vital for the Paralever’s performance:
- Front: 2.2 bar (31.9 psi) solo; 2.5 bar (36.3 psi) with luggage/pillion.
- Rear: 2.5 bar (36.3 psi) solo; 2.9 bar (42.1 psi) fully loaded.
Electrical System
Equipped with a high-torque Bosch starter, the Mystic requires a beefy 19Ah battery (51913). Given the modest output of the charging system at low RPMs, owners should utilize a battery tender if the bike is not ridden weekly to prevent sulfation.
MotoSpecsLab Verdict
The R 80 R Mystic is more than a styling exercise; it is one of the most refined iterations of the air-cooled boxer. It offers the classic ‘Airhead’ character with the benefit of modern brakes (Brembo 4-piston calipers) and a more sophisticated suspension. For the collector or the weekend tourer, it remains a high-authority choice in the vintage BMW lineup.