Honda GB350S Pairs an Air-Cooled Single With Traction Control

Honda's GB350S is a small, old-school roadster: an air-cooled single, a steel tank, a round headlight and twin rear shocks, with ABS and traction control as standard.

Honda presented the 2025 GB350S at EICMA in November 2024, and EICMA published the details on Nov. 10, 2024. It was introduced for Europe, where it fits the A2 license. The announcement doesn't mention U.S. availability or price.

Key points:

• Engine: air-cooled, Euro 5+ single, rated at 21 hp and 29 Nm (about 21.4 lb-ft).
• Gearbox: five-speed with an assist-and-slipper clutch.
• Rider aids: ABS and traction control, both standard.
• Chassis: 41 mm fork, twin rear shocks, 19-inch front / 17-inch rear wheels.
• Seat: 800 mm (31.5 in), long and flat.
• Brakes: 310 mm front disc, 240 mm rear disc.

A Classic Shape With Modern Basics

The GB350S is built to look like an older motorcycle. It has a steel fuel tank, a long flat seat, a round LED headlight, an analog round speedometer with a small LCD panel, rubber gaiters on the 41 mm fork, and two rear shocks. The bodywork is minimal, so the engine stays on display.

Underneath the look are two features many retro bikes in this class skip:

1. Traction control as standard. It limits rear-wheel spin under acceleration, which can help on wet paint lines or gravel.
2. An assist-and-slipper clutch. The "assist" part lightens the clutch lever pull, and the "slipper" part lets the clutch slip a little during aggressive downshifts so the rear wheel is less likely to hop.

ABS is standard as well.

Modest Power, by Design

Honda rates the engine at 21 hp and 29 Nm. That's low, but this is a relaxed roadster, not a sport bike, and the torque figure is more telling than the horsepower for around-town riding.

EICMA's article says Honda states fuel efficiency of 40 km per liter, roughly 94 mpg. That is Honda's figure, and real economy will vary with how and where you ride.

The “350” in the name is a model badge. Honda’s U.K. specification lists 348cc.

Wheels, Brakes and Accessories

The 19-inch front and 17-inch rear wheel pairing gives the bike a classic stance. Braking comes from a 310 mm front disc and 240 mm rear disc.

Honda lists three 2025 colors: Pearl Deep Mud Gray, Gunmetal Black Metallic and a blue EICMA's article calls Puco Blue. Accessories include a small windshield and side bags with mounts.

What It Means for U.S. Riders

Nothing in the announcement says the GB350S is sold in the U.S. If you're shopping for a small, simple standard here, check Honda Powersports' current U.S. lineup rather than assuming European models carry over.

Check your state’s license, registration and insurance requirements before buying a motorcycle in this class. As with any new model, get a quote on the exact bike before you buy.