Honda has introduced the GB350S, a motorcycle that seamlessly blends retro aesthetics with modern engineering. This bike aims to enrich the entry-level retro segment, offering riders a nostalgic experience without compromising on contemporary performance.
2025 Honda GB350S Engine and Performance
| Specification | Details |
|---|---|
| Engine Type | Air-cooled, 4-stroke, single-cylinder |
| Displacement | 348 cc |
| Bore x Stroke | 70.0 mm x 90.5 mm |
| Compression Ratio | 9.5:1 |
| Maximum Power | 20.8 hp (15.5 kW) @ 5,500 rpm |
| Maximum Torque | 21.4 lb-ft (29 Nm) @ 3,000 rpm |
| Fuel System | PGM-FI (Programmed Fuel Injection) |
| Transmission | 5-speed manual |
| Clutch | Wet, multi-plate with assist/slipper function |
| Final Drive | Chain |
At the heart of the GB350S lies a 348cc single-cylinder, air-cooled, four-stroke engine. This SOHC (Single Overhead Camshaft) configuration, featuring two valves per cylinder, delivers 21 horsepower at 5,500 RPM and 29 Nm of torque at 3,000 RPM.
The engine’s long-stroke design (bore and stroke: 70.0 x 90.5 mm) contributes to its distinctive character, providing a smooth and torquey ride ideal for both beginners and seasoned riders.
2025 Honda GB350S Transmission and Handling
| Specification | Details |
|---|---|
| Lighting | Full LED (headlight, taillight, turn signals) |
| Instrumentation | Analog speedometer with integrated LCD display (gear position, fuel gauge, etc.) |
| Rider Aids | Honda Selectable Torque Control (HSTC), ABS |
| Additional Features | Emergency Stop Signal (ESS), auto-canceling turn signals |
The GB350S is equipped with a five-speed gearbox, with gear ratios designed for relaxed cruising and responsive acceleration. The bike’s top speed is approximately 114 km/h, making it suitable for highway riding without overwhelming the rider.
Weighing in at 178 kg (ready to ride) and featuring a seat height of 800 mm, the GB350S offers a balanced and manageable ride. The front suspension consists of a 41 mm telescopic fork with 106 mm of travel, while the rear features twin shock absorbers with 120 mm of travel, ensuring a comfortable ride over various terrains.
2025 Honda GB350S 0-60, 0-100 & Top Speed
2025 Honda GB350S is anticipated to maintain the performance characteristics of its predecessors. Equipped with a 348cc single-cylinder, air-cooled engine producing approximately 21 horsepower at 5,500 RPM and 29 Nm of torque at 3,000 RPM, the GB350S is designed for smooth, relaxed riding rather than high-speed performance.
While specific acceleration figures (0-60 km/h and 0-100 km/h) are not officially provided, the GB350S’s performance is comparable to similar models in its class. Riders can expect a 0-60 km/h time in the range of 5 to 6 seconds and a 0-100 km/h time between 10 to 12 seconds, depending on factors such as rider weight and riding conditions.
The top speed of the GB350S is estimated to be around 130 km/h, making it suitable for city commuting and moderate highway cruising. This aligns with the bike’s design focus on delivering a comfortable and enjoyable riding experience rather than prioritizing high-speed capabilities.
Braking and Safety
| Specification | Details |
|---|---|
| Frame Type | Semi-double cradle (steel) |
| Front Suspension | 41 mm telescopic fork, 106 mm travel |
| Rear Suspension | Twin shock absorbers, 120 mm travel |
| Front Brake | Single 310 mm disc with 2-piston caliper (ABS) |
| Rear Brake | Single 240 mm disc with 1-piston caliper (ABS) |
| Front Tire | 100/90-19M/C (57H) |
| Rear Tire | 150/70R17M/C (69H) |
Safety is addressed with a single 310 mm front disc brake paired with a two-piston caliper, providing adequate stopping power for everyday riding scenarios. The inclusion of ABS enhances braking performance, especially in less-than-ideal conditions.
2025 Honda GB350S Fuel Efficiency and Range
The GB350S boasts impressive fuel efficiency, with Honda claiming a consumption rate of 2.5 L/100 km. Coupled with a 15-liter fuel tank, riders can expect a substantial range, making it suitable for longer journeys without frequent refueling stops.
Design and Features
| Specification | Details |
|---|---|
| Overall Length | 2,175 mm |
| Overall Width | 800 mm |
| Overall Height | 1,100 mm |
| Wheelbase | 1,440 mm |
| Seat Height | 800 mm |
| Ground Clearance | 166 mm |
| Curb Weight | 178 kg |
| Fuel Tank Capacity | 15 liters |
Aesthetically, the GB350S captures the essence of classic motorcycles with its steel fuel tank and minimalist design. The analog speedometer, integrated with an LCD display featuring a gear indicator, bridges the gap between retro charm and modern functionality. While the bike maintains a straightforward approach, it doesn’t skimp on essential features, ensuring a practical and enjoyable riding experience.
Competitors of 2025 Honda GB350S
2025 Honda GB350S faces strong competition in the retro motorcycle market, where riders have several attractive options combining classic design with modern performance. Here’s an overview of its main rivals.
| Model | Engine | Power | Torque | Transmission | Weight (wet) | Seat Height | Fuel Capacity | Brakes | Price (Approx) |
|---|---|---|---|---|---|---|---|---|---|
| Honda GB350S | 348cc, air-cooled, single-cylinder | 21 hp @ 5,500 rpm | 29 Nm @ 3,000 rpm | 5-speed manual | 178 kg | 800 mm | 15 liters | Front and rear disc with dual-channel ABS | $1,900 |
| Royal Enfield Hunter 350 | 349cc, air-cooled, single-cylinder | 20.2 hp @ 6,100 rpm | 27 Nm @ 4,000 rpm | 5-speed manual | 181 kg | 800 mm | 13 liters | Front and rear disc with dual-channel ABS | $1,800 |
| Triumph Speed 400 | 398cc, liquid-cooled, single-cylinder | 39.5 hp @ 8,000 rpm | 37.5 Nm @ 6,500 rpm | 6-speed manual | 170 kg | 790 mm | 13 liters | Front and rear disc with dual-channel ABS | $2,800 |
| Yamaha XSR300 | 321cc, liquid-cooled, parallel-twin | 41.4 hp @ 10,750 rpm | 29.6 Nm @ 9,000 rpm | 6-speed manual | 168 kg | 815 mm | 14 liters | Front and rear disc with dual-channel ABS | $3,800 |
| Kawasaki W175 | 177cc, air-cooled, single-cylinder | 13 hp @ 7,500 rpm | 13.2 Nm @ 6,000 rpm | 5-speed manual | 135 kg | 790 mm | 12 liters | Front disc, rear drum with single-channel ABS | $1,700 |
- The Royal Enfield Hunter 350 offers a 349cc air-cooled, single-cylinder engine with 20.2 horsepower at 6,100 rpm and 27 Nm of torque at 4,000 rpm. This retro-inspired bike comes with a 5-speed manual transmission and weighs 181 kg (wet), featuring an 800 mm seat height. Its 13-liter fuel capacity and dual-channel ABS provide added convenience and safety, while its pricing around $1,800 (ex-showroom) makes it accessible for a broad range of riders.
- The Triumph Speed 400 brings a premium touch with a 398cc liquid-cooled, single-cylinder engine generating 39.5 horsepower at 8,000 rpm and 37.5 Nm of torque at 6,500 rpm. The Speed 400 is equipped with a 6-speed manual transmission, weighs 170 kg (wet), and has a 790 mm seat height, making it both agile and comfortable. With a 13-liter tank, dual-channel ABS, and a price around $2,800 (ex-showroom), it’s ideal for those wanting a more refined retro experience.
- The Yamaha XSR300 adds some punch to the retro lineup with a 321cc liquid-cooled, parallel-twin engine. It delivers 41.4 horsepower at 10,750 rpm and 29.6 Nm of torque at 9,000 rpm, paired with a 6-speed manual transmission. Weighing 168 kg (wet) with an 815 mm seat height, the XSR300 is great for riders who value power and handling. Its 14-liter fuel capacity, dual-channel ABS, and pricing around $3,800 (ex-showroom) cater to those looking for both performance and classic styling.
- Finally, the Kawasaki W175 is a simpler, more budget-friendly option with a 177cc air-cooled, single-cylinder engine producing 13 horsepower at 7,500 rpm and 13.2 Nm of torque at 6,000 rpm. It has a 5-speed manual transmission, weighs just 135 kg (wet), and offers a 790 mm seat height. With a 12-liter fuel tank and single-channel ABS, the W175 is priced around $1,700 (ex-showroom), perfect for riders seeking a lightweight, classic bike for relaxed cruising.
Fuel Mileage
2025 Honda GB350S is powered by a 348cc single-cylinder, air-cooled, four-stroke engine with a long-stroke configuration (bore and stroke: 70.0 x 90.5 mm). This setup delivers 20 horsepower at 5,500 RPM and 29 Nm of torque at 3,000 RPM, providing a smooth and torquey ride ideal for both beginners and seasoned riders.
The engine’s low compression ratio of 9.5:1 and fuel injection system contribute to its fuel efficiency. Previous models have reported fuel consumption rates as low as 2.44 liters per 100 km (approximately 96 miles per gallon). With a 15-liter fuel tank, riders can expect a substantial range, making it suitable for longer journeys without frequent refueling stops.
Price
The Honda GB350S is anticipated to be priced at approximately $5,199 in the United States. In India, the expected price is around ₹3,12,440. Please note that these figures are estimates, and official pricing will be confirmed upon the model’s release.
Release Date
The 2025 Honda GB350S is expected to be introduced in Japan around mid-2025, with production beginning shortly after. Customer deliveries are anticipated in the latter half of 2025. For confirmed dates, keep an eye on Honda’s official announcements or check with authorized dealers.
Unfortunately that wasn’t everything I need to know about the GB350S. I read in the manual that the valves need measuring (and maybe adjusting) every 4000 miles. It is quite a short interval. So the question is how are the valves on a GB350S adjusted?
So far, valve information has gaps in it. Don’t buy the bike until you know how to adjust the valves…..