| Component | Specification |
|---|---|
| Engine Type | 755cc Parallel-twin, 270° Crank, Unicam |
| Model Years | 2023–Present |
| Engine Oil | SAE 10W-30 API SG+ / JASO MA (3.4 L) |
| Front Tire | 90/90-21 M/C 54H (Tube Type) |
| Rear Tire | 150/70-R18 M/C 70H (Tube Type) |
| Tire Pressure (F/R) | 2.00 bar (29 psi) / 2.80 bar (41 psi) |
| Spark Plug | NGK SILMAR8A9S |
| Battery | YTZ10S |
The Honda XL 750 Transalp (RD17) represents a significant engineering pivot for Honda’s middleweight adventure lineup. While its predecessors were known for the V-twin configuration, the RD17 utilizes a high-revving 755cc parallel-twin featuring Honda’s patented Unicam valvetrain—a design directly descended from the CRF450R motocrosser. This allows for a more compact cylinder head, optimizing the center of gravity for off-road maneuvers.
Technical Analysis: The RD17 Platform
The RD17 chassis is a masterpiece of weight reduction, with the steel diamond frame weighing only 18.3kg—10% lighter than the CB500X frame. This lightness, combined with the 270-degree crank, provides a characterful V-twin-like power delivery with superior traction in loose terrain. The 21-inch front and 18-inch rear wheel combination confirms its true dual-sport intentions, though the use of tube-type rims remains a point of contention for long-distance tourers.
Maintenance Essentials
To maintain the high-performance Unicam engine, adherence to lubrication standards is critical. The RD17 requires 3.4 liters of SAE 10W-30 oil meeting JASO T 903 MA standards. Using oils with friction modifiers can lead to premature clutch slip due to the assist/slipper clutch design.
Ignition and Electrical
The ignition system utilizes high-performance NGK SILMAR8A9S laser-iridium plugs, designed for the high compression and lean-burn cycles of the 755cc mill. For electrical reliability, the YTZ10S battery provides the necessary cold-cranking amps for the sophisticated ride-by-wire system and optional heated grips.
Editorial Review: MotoSpecsLab Verdict
The XL 750 Transalp is arguably the best value-to-performance ratio in the current ADV market. It bridges the gap between the lightweight CRF300L and the heavy Africa Twin. Pros: Exceptional engine character, agile handling, and competitive pricing. Cons: Lack of cruise control as standard and the vulnerability of tube-type tires on remote tarmac sections.
Frequently Asked Questions
What is the recommended tire pressure for off-road use?
While the street recommendation is 2.0 bar front and 2.8 bar rear, many riders drop to 1.6-1.8 bar for off-road traction; however, caution is advised to prevent pinch flats on the tube-type rims.
How often should I change the NGK SILMAR8A9S plugs?
Honda typically recommends inspection every 12,000 km, but these iridium plugs are generally rated for much longer lifespans under normal touring conditions.