The Honda Grom motorcycle specifications include a 124.9 cc (7.62 cu in) engine, a 4-speed gearbox, and a listed weight of 102.1 kg (225 lb).
Key specifications
2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023Model years
125 ccDisplacement
102.1 kgWet weight
754 mmSeat height
5.5 LFuel tank
1,199 mmWheelbase
Model years covered
201420162017201820192020202120222023
Year-specific specification changes
The 2014 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Bore × stroke
2021202350.0 x 63.1 mm (2.0 x 2.5 inches)
Displacement
20222023124 cc (7.57 cu in)
Front brakes
20222023Single disc. Hydraulic. Two-piston calipers. Optional ABS.
Front suspension
2021USD Front Forks, 31mm
2022202331mm telescopic inverted fork
Fuel system
2021Injection. PGM-FI
2023Injection. PGM-FI
Rear brakes
20222023Single disc. Hydraulic. Single-piston caliper. Optional ABS.
Rear suspension
2021Mono shock, steel square pipe swingarm
Wet weight
20172020103.9 kg (229 lb)
20212022103 kg (227.1 lb)
2023101.2 kg (223 lb)
Wheelbase
202120231,200 mm (47.2 inches)
Emission details
20222023Meets current EPA standards. Models sold in California meet current CARB standards. Euro 5.
Front wheel travel
2019202399 mm (3.9 inches)
Fuel capacity
20195.00 L (1.32 US gal)
202120236.00 L (1.59 US gal)
Rear wheel travel
20192023104 mm (4.1 inches)
Seat height
20192020762 mm (30.0 inches)
20212023761 mm (30.0 inches)
Trail
202181 mm (3.2 inches) | 125
2022125
202384 mm (3.3 inches) | 125
How the Honda Grom compares
This compares the motorcycle with all Honda models in this specifications database. The blue marker is this model and the grey line is the Honda database average.
Displacement125 cc
Low 49 ccAverage 563 ccHigh 1,832 cc
About 78% lower than the Honda database average. Around the 17th percentile across Honda models.
Wet weight102.1 kg
Low 75.7 kgAverage 197.5 kgHigh 387 kg
About 48% lighter than the Honda database average. Around the 9th percentile across Honda models.
Seat height754 mm
Low 650 mmAverage 780 mmHigh 960 mm
Very close to the Honda database average. Around the 34th percentile across Honda models.
Fuel capacity5.5 L
Low 3.7 LAverage 13.5 LHigh 25 L
About 59% smaller than the Honda database average. Around the 10th percentile across Honda models.
This model Honda database average
Mechanical overview
Engine layout snapshot
Single cylinder, four-stroke • 125 cc • Air cooled
Chassis snapshot
Wheelbase 1,199 mmSeat 754 mm
4-speed • Chain (final drive) • 120/70-12 front / 130/70-12 rear
Additional useful specifications
| Front tire size |
120/70-12 |
| Rear tire size |
130/70-12 |
| Front tire width |
120 mm |
| Front tire aspect ratio |
70% |
| Front rim diameter |
12 in |
| Rear tire width |
130 mm |
| Rear tire aspect ratio |
70% |
| Rear rim diameter |
12 in |
| Bore/stroke ratio |
0.91:1 (Undersquare) |
Engine specifications
| Engine type |
Single cylinder, four-stroke |
| Displacement |
124.9 cc (7.62 cu in) |
| Bore × stroke |
52.4 x 57.9 mm (2.1 x 2.3 inches) |
| Compression ratio |
9.3:1 |
| Valves per cylinder |
2 |
| Cooling system |
Air |
| Fuel system |
Injection. PGM-FI with automatic enrichment |
| Fuel control |
Single Overhead Cams (SOHC) |
| Ignition |
Electronic |
| Starter |
Electric |
Transmission and drivetrain
| Gearbox |
4-speed |
| Final drive |
Chain (final drive) |
Chassis and suspension
| Front suspension |
31mm inverted fork |
| Rear suspension |
Single shock with steel box-section swingarm |
| Front wheel travel |
118 mm (4.6 inches) |
| Rear wheel travel |
70 mm (2.8 inches) |
| Rake |
25.0° |
| Trail |
81 mm (3.2 inches) |
Brakes, wheels and tires
| Front brakes |
Single disc. Hydraulic. Two-piston calipers. |
| Rear brakes |
Single disc. Hydraulic. Single-piston caliper. |
| Front tire |
120/70-12 |
| Rear tire |
130/70-12 |
Dimensions and weight
| Wet weight |
102.1 kg (225 lb) |
| Seat height |
754 mm (29.7 inches) |
| Wheelbase |
1,199 mm (47.2 inches) |
Fuel and emissions
| Fuel capacity |
5.49 L (1.45 US gal) |
| Emission details |
Meets current EPA standards. Models sold in California meet current CARB standards and may differ slightly due to emissions equipment. |
Other specifications
| Color options |
Metallic Black, Pearl Red |
| Factory warranty |
One year. Unlimited milage. Transferable. |
| Price as new |
US$ 3199. MSRP depends on country, taxes, accessories, etc. |
| Comments |
Model ID: Grom125 |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Honda models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Honda information before relying on them. Visit the official Honda website.