| Component | Specification |
|---|---|
| Production Years | 2018–Present |
| Engine Type | 1,833cc Liquid-cooled 24-valve SOHC Flat-6 |
| Engine Oil | SAE 10W-30 (JASO MA) – 3.7L (MT) / 4.6L (DCT) |
| Tire Size | F: 130/70R18 M/C 63H / R: 200/55R16 M/C 77H |
| Tire Pressure | Front: 2.50 bar (36 psi) / Rear: 2.80 bar (41 psi) |
| Battery | GYZ20L |
| Spark Plugs | NGK IMR9E-9HES |
The SC79 generation of the Honda Gold Wing represents a radical departure from its predecessors. Most notably, it debuted a double-wishbone front suspension system, a feat of engineering that decoupled steering forces from suspension action. This design reduced front-end dive by 30% and allowed the engine to be moved forward in the chassis, significantly improving the center of gravity and low-speed maneuverability.
Technical Review: Redefining the Flat-Six
The 1,833cc engine in the SC79 is entirely new compared to the SC47/SC68 models. It features a four-valve-per-cylinder head design (Unicam) and a significantly lighter crankshaft. From a professional standpoint, the integration of the 7-speed Dual Clutch Transmission (DCT) is the highlight of this generation, offering seamless gear changes that match the smooth power delivery of the horizontally opposed cylinders.
Maintenance Insights for the Professional Mechanic
Serviceability on the SC79 requires precision, particularly regarding the cooling system and the complex fairing removal process. Owners and technicians must adhere strictly to the following parameters:
- Lubrication: Use only JASO MA certified 10W-30 oil. Note the significant 0.9L difference in capacity between the Manual and DCT variants due to the additional hydraulic circuits in the DCT unit.
- Ignition: The NGK IMR9E-9HES plugs are high-performance iridium components designed for long intervals, but they must be gapped correctly to ensure the Unicam system operates efficiently.
- Chassis: The double-wishbone setup uses a single shock absorber in the front. While it reduces friction, pivot points should be inspected for play every 24,000 miles.
MotoSpecsLab Verdict
The Honda GL 1800 SC79 is not just a motorcycle; it is a masterclass in packaging and mass centralization. By reducing the overall weight by nearly 40kg compared to the previous generation, Honda transformed the ‘King of Tourers’ into a machine that handles with surprising agility. For the long-distance rider, maintaining tire pressure at exactly 36/41 psi is critical to prevent cupping on the heavy 200-section rear tire.