| Parameter | Specification |
|---|---|
| Production Years | 2017–2020 |
| Engine Oil | SAE 10W-30 JASO T 903 MA (1.5 L) |
| Front Tire | 3.00-21 51P |
| Rear Tire | 120/80-18M/C 62P |
| Tire Pressure (F/R) | 1.5 bar (22 psi) / 1.5 bar (22 psi) |
| Battery Type | YTZ8V |
| Spark Plug | NGK SIMR8A9 |
The Honda CRF 250 RLA RALLY (MD44B/K) stands as a significant engineering milestone for Honda, representing the first time a major manufacturer successfully translated the aesthetic and ergonomic DNA of a Dakar-winning factory racer—the CRF450 Rally—into a mass-market, small-displacement dual-sport platform. Unlike the standard CRF250L, the Rally variant features a larger fuel tank, frame-mounted fairings, and long-travel suspension, making it a unique hybrid of a commuter and a long-distance explorer.
Engineering Overview: The MD44 Platform
The MD44B/K generation (2017–2020) introduced several refinements over the original MD38 engine, including a larger throttle body and a revised exhaust system to meet Euro 4 emissions standards while actually increasing peak power. The engine is a liquid-cooled, 249cc DOHC single-cylinder unit known for its linear power delivery and exceptional reliability. From an engineering perspective, the choice of a frame-mounted screen and fairing is critical; it reduces steering inertia compared to handlebar-mounted setups, providing more stable handling at highway speeds.
Maintenance Essentials
Maintaining the CRF 250 RLA Rally requires precision, particularly regarding its lubrication and ignition systems. As the Editor-in-Chief of MotoSpecsLab, I emphasize the use of SAE 10W-30 JASO T 903 MA oil. With a capacity of 1.5 liters, this specific grade ensures the wet clutch operates without slippage while providing adequate protection for the high-revving valvetrain.
For the ignition system, the NGK SIMR8A9 iridium spark plug is mandatory. Iridium plugs offer a more stable spark and a longer service life, which is essential given the somewhat cramped access to the cylinder head under the rally fairings. The electrical system is powered by a YTZ8V battery, which provides the necessary cold-cranking amps for the high-compression single.
Chassis and Handling
The bike utilizes a classic off-road wheel combination: a 21-inch front and an 18-inch rear. The factory-recommended tire pressure of 1.5 bar (22 psi) for both ends is a ‘middle-ground’ setting. While ideal for mixed-use, riders venturing into deep sand or technical mud may find that dropping the pressure slightly improves the contact patch, though this should only be done with rim locks installed to prevent tire slip.
Editorial Verdict
The MD44B/K is an over-engineered marvel in the 250cc class. While it carries more weight than its ‘L’ sibling, the aerodynamic protection and increased fuel range make it a legitimate lightweight adventure bike. For owners, adhering to the 10W-30 oil specification and maintaining the 22 psi tire pressure is the key to preserving the bike’s balanced handling characteristics and legendary Honda longevity.