Minibikes
2021Honda Grom
49 fields on record
The 2021 Honda Grom is a compact minibike for riders who want compact, fun and easy-to-handle transport. Its 125cc air-cooled single makes 9.7 hp and 10.9 Nm, with a 765 mm seat, a 102 kg wet weight and a 5.5-litre tank.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 4-speed
- Wet weight
- 101.7 kg
- Seat height
- 765 mm
- Power
- 9.7 HP (7.2 kW) @ 7000 RPM
What’s new for the 2021 Honda Grom
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Wet weight | 103.9 kg (229.1 pounds) | 101.7 kg (224.2 pounds) |
| Front suspension | 31mm inverted fork | USD Front Forks, 31mm |
| Rear suspension | Single shock with steel box-section swingarm | Mono shock, steel square pipe swingarm |
| Front brakes | Single disc. Hydraulic. Two-piston calipers. | Single disc. ABS. Hydraulic. Two-piston calipers. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for short, fun rides and easy handling rather than distance or speed.
- Built for
- A minibike from Honda with a 125cc engine; its character is easy-going and economical, with 10 hp on tap.
- Not ideal for
- Not for motorway riding, long distances or carrying a passenger.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Range and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 125.0 ccm
- Power
- 9.7 HP (7.2 kW) @ 7000 RPM
- CO2 Emissions
- 32 CO2 g/km
- EPA Certificate No.
- MHNXC0.12CTC-003
- EPA Est. Fuel Consumption
- 1.36 L/100km (173.0 US mpg)
- EPA CO Emissions
- 0.7 CO g/km
- Torque
- 10.9 Nm (1.1 kgf-m) @ 5500 RPM
- Engine type
- Single, four-stroke
- Fuel consumption
- 1.50 litres/100 km (66.7 km/l)
- Power/weight ratio
- 0.0954 HP/kg (wet)
- Bore x stroke
- 52.4 x 57.9 mm
- Compression
- 9.3:1
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Electronic
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 2
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multiplate
Dimensions & weight
- Wheelbase
- 1200 mm
- Overall length
- 1770 mm
- Overall width
- 740 mm
- Overall height
- 1010 mm
- Seat height
- 765 mm
- Wet weight
- 101.7 kg
- Fuel capacity
- 5.50 litres
- Ground clearance
- 160 mm
- Oil capacity
- 1.10 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Steel mono-backbone
- Front suspension
- USD Front Forks, 31mm
- Rear suspension
- Mono shock, steel square pipe swingarm
- Front wheel travel
- 118 mm
- Rear wheel travel
- 70 mm
- Rake (fork angle)
- 25.0°
- Trail
- 81 mm
Brakes & wheels
- Front brakes
- Single disc. ABS. Hydraulic. Two-piston calipers.
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. Hydraulic. Single-piston caliper.
- Rear brakes diameter
- 190 mm
- ABS
- Yes
- Front tyre
- 120/70-12
- Rear tyre
- 130/70-12
Other
- Color options
- Matt Axis Grey Metallic, Pearl Valentine Red
- Comments
- Model ID: Grom125A
- Fuel Tank Material
- Metal
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2014 | 2017 | 2020 | 2021 | 2023 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 124 cc | 124 cc |
| Seat height | 754 mm | 765 mm | 762 mm | 765 mm | 761 mm | 762 mm |
| Fuel capacity | 5.5 L | 5.5 L | 5.5 L | 5.5 L | 6 L | 6.1 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Honda Grom?
The 2021 Honda Grom has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Honda Grom have?
The 2021 Honda Grom has a Power of 9.7 HP (7.2 kW) @ 7000 RPM.
How many gears does the Honda Grom have?
The 2021 Honda Grom has a Gearbox of 4-speed.
What is the torque of the Honda Grom?
The 2021 Honda Grom has a Torque of 10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 5500 RPM.
How much does the Honda Grom weigh?
The 2021 Honda Grom has a Wet weight of 101.7 kg (224.2 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.