| MODEL | HONDA GB 350S 2025 |
| Year | 2025 |
| Engine Type | Four-stroke, single cylinder, SOHC, 2 valves |
| Displacement / Capacity | 348 cc / 21.2 cu in |
| Bore X Stroke | 70 x 90.5 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 15.5 kW / 20.7 hp @ 5500 rpm |
| Max Torque | 29 Nm / 21.4 lb-ft @ 3000 rpm |
| Ignition | Electronic |
| Induction | PGM-FI fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet, multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 41 mm telescopic fork, 106 mm / 4.2 in travel |
| Rear Suspension | Twin shocks, 120 mm / 4.7 in travel |
| Front Brakes | Single 310 mm disc, 2 piston caliper, ABS |
| Rear Brakes | Single 240 mm disc, 2 piston caliper, ABS |
| DIMENSION SPECS | |
| Overall Length | 2175 mm / 85.6 in |
| Overall Width | 790 mm / 31.1 in |
| Overall Height | 1100 mm / 43.3 in |
| Seat Height | 800 mm / 31.5 in |
| Wheelbase | 1440 mm / 56.7 in |
| Ground Clearance | 168 mm / 6.6 in |
| Dry Weight | — |
| Wet Weight | 178 kg / 392 lbs |
| WHEEL SPECS | |
| Front Tyre | 100/90R19 |
| Rear Tyre | 150/70R17 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The GB350S is the sportier version of Honda's retro GB350, with a long-stroke, air-cooled 348 cc single tuned for low-down pull. Compared with the standard GB350 it has a lower, flatter handlebar, a 17-inch rear wheel with a wider 150-section tyre, and different seat and mudguards. For 2025 it was offered in Europe as a simple, light classic roadster with dual-channel ABS.
