| Component | Specification |
|---|---|
| Production Years | 2016 – 2020 |
| Engine Oil | SAE 5W-40, API SL / JASO MA2 (4.0 L) |
| Tire Dimensions | F: 120/70 R 19 / R: 170/60 R 17 |
| Tire Pressure | F: 2.5 bar (36.3 psi) / R: 2.9 bar (42.1 psi) |
| Battery Type | ETX14-BS |
| Spark Plug | NGK MAR8B-JDS |
Historical Context: While many modern retros are purely aesthetic exercises, the BMW R NineT Scrambler (0J31) is a direct engineering descendant of the 1951 BMW R 68—the company’s first 100-mph production motorcycle that featured a high-mounted exhaust system specifically designed for off-road competition and gravel paths. This Euro 4 iteration represents the refinement of the air/oil-cooled boxer engine before the transition to the more restrictive Euro 5 standards.
Engineering & Performance Overview
The R NineT Scrambler (0J31) is powered by the legendary 1,170cc DOHC boxer engine. Unlike the standard R NineT, the Scrambler utilizes a 19-inch front wheel and conventional telescopic forks with gaiters, shifting the geometry for a more relaxed, upright riding position. The Euro 4 mapping provided a robust torque curve, though it required precise fuel-air management to meet emissions without sacrificing the characteristic ‘boxer punch.’
Maintenance Specifications & Service Data
Proper maintenance is critical for the longevity of the 0J31 chassis. Owners should prioritize the following technical requirements:
- Lubrication: The engine requires 4.0 liters of high-quality synthetic 5W-40 oil. Ensuring the oil meets JASO MA2 standards is vital for the longevity of the internal components, even though the dry clutch system is separate from the engine oil.
- Ignition System: The NGK MAR8B-JDS spark plugs are specifically gapped for the high-compression boxer. Periodic inspection every 12,000 miles is recommended to prevent misfires.
- Electrical: The ETX14-BS battery provides the high cold-cranking amps (CCA) required to turn over the large twin cylinders, especially in colder climates.
Chassis & Handling
The choice of a 120/70 R 19 front tire significantly alters the turn-in characteristics compared to its 17-inch siblings. To maintain stability and prevent uneven tire wear, pressures must be kept strictly at 2.5 bar (front) and 2.9 bar (rear). These pressures are optimized for the Scrambler’s unique weight distribution and the increased sidewall flex of the 19-inch front rim.
Frequently Asked Questions
What is the oil change interval for the 0J31?
BMW recommends a service interval of 10,000 km (approx. 6,000 miles) or once a year, whichever comes first.
Can I use 10W-40 oil instead?
While 10W-40 is common, BMW specifically specifies 5W-40 for the Euro 4 boxer to ensure optimal flow during cold starts and consistent viscosity at high operating temperatures.
Why does the Scrambler use a 19-inch front wheel?
The 19-inch wheel provides better stability on uneven surfaces and gravel, staying true to the ‘Scrambler’ heritage while offering a wider variety of dual-sport tire options.