14 August. Friday 2026
Honda Grom - 2021 Specifications and Reviews
The 2021 Honda Grom is a lightweight 125cc sport bike perfectly suited for beginners, urban commuters, and riders seeking affordable fun. Known for its nimble handling, compact size, and reliability, the Grom delivers 9.9 horsepower through a fuel-injected four-stroke engine. Its playful character and low seat height make it ideal for learning to ride or enjoying spirited city riding.
General information | |
| Category | Sport |
| Year | 2021 |
| Model | Honda Grom |
| | |
Engine and Transmission Specifications | |
| Greenhouse gases | 34.1 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 1.47 litres/100 km (68.0 km/l or 160.01 mpg) |
| Clutch | Multiplate wet |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Air |
| Ignition | Electronic |
| Fuel control | Single Overhead Cams (SOHC) |
| Fuel system | Injection. PGM-FI |
| Valves per Cylinder | 2 |
| Bore x Stroke | 50.0 x 63.1 mm (2.0 x 2.5 inches) |
| Compression | 10.0:1 |
| Torque | 11.0 Nm (1.1 kgf-m or 8.1 ft.lbs) @ 6000 RPM |
| Power | 9.9 HP (7.2 kW) @ 7250 RPM |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 124.9 ccm (7.62 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc. Hydraulic. Single-piston caliper. |
| Diameter | 220 mm (8.7 inches) |
| Front brakes | Single disc. Hydraulic. Two-piston calipers. |
| Rear tire | 130/70-12 |
| Front tire | 120/70-12 |
| Rear wheel travel | 104 mm (4.1 inches) |
| Rear Suspension | Mono shock, steel square pipe swingarm |
| Front wheel travel | 99 mm (3.9 inches) |
| Front Suspension | USD Front Forks, 31mm |
| Trail | 81 mm (3.2 inches) |
| Rake (fork angle) | 25.0° |
| Frame type | Steel mono-backbone |
Physical measures and capacities | |
| Oil capacity | 1.10 litres (1.16 US quarts) |
| Fuel capacity | 6.00 litres (1.59 US gallons) |
| Wheelbase | 1200 mm (47.2 inches) |
| Ground clearance | 180 mm (7.1 inches) |
| Overall width | 720 mm (28.3 inches) |
| Overall length | 1760 mm (69.3 inches) |
| Overall height | 1015 mm (40.0 inches) |
| Seat height | 761 mm (30.0 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 103.0 kg (227.1 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Model ID: Grom125. |
| Factory warranty | One year. Unlimited milage. Transferable. |
| Light | LED lighting |
| Instruments | LCD digital dash with speedometer, twin trip meters, fuel gauge and clock. |
| Starter | Electric |
| Color options | Red, Silver/yellow, Grey/black |
Performance Profile & Rider Fit
Best For
Track55%
City95%
Cornering80%
Daily Riding75%
Touring20%
Passenger25%
Rider Profile
| Best For | Ideal for beginners and even experienced riders looking for a fun, low-stakes machine to hone throttle and clutch control. |
| Purpose | Built for playful urban commuting, tight backroad scratching, and general grin-inducing fun rather than outright performance. |
| Rider Fit | Its very low seat height and lightweight 224 lb chassis make it extremely accessible to shorter or less physically strong riders. |
| Character | A cheeky, minibike-inspired runabout that rewards flickable handling and high-rev thrashing over raw power. |
| Not Ideal For | Not suited to highway touring, carrying a passenger long distances, or riders seeking strong straight-line performance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Honda Grom motorcycle is a fantastic option for anyone looking for a fun and lightweight ride. With its compact size and zippy engine, the Grom is perfect for city streets and urban commuting. The bike's fuel-efficient design and low seat height make it a great choice for beginners or experienced riders looking for a nimble and easy-to-handle motorcycle. In addition to its practicality, the 2021 Honda Grom also offers a stylish and modern aesthetic. Its sleek lines and vibrant color options make it stand out on the road, while its comfortable riding position and user-friendly controls make it a joy to ride. Overall, the 2021 Honda Grom is a versatile and exciting motorcycle that offers both practicality and a fun riding experience.Add a Comment
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