FAQ — Product & Specifications
Understanding the specifications
What does the 3000W / 6000W figure mean? It is the stated peak motor output, not a continuous or nominal power rating. Peak figures describe the maximum a motor can deliver briefly; sustained output is lower.
How do I read a specification like "72V 25Ah"?
- 72V is the nominal system voltage — higher voltage supports higher speed and efficiency.
- 25Ah is the battery capacity in amp-hours. Multiplied together (V × Ah) this gives the energy in watt-hours.
| Model | System | Energy (approx.) |
|---|---|---|
| D02 Classic | 48V 21Ah | ~1008 Wh |
| D03 Pro | 48V 23Ah | ~1104 Wh |
| D02 Track | 72V 25Ah | ~1800 Wh |
| D03 Beast | 72V 25Ah | ~1800 Wh |
Higher watt-hours generally means more range potential, but actual range depends heavily on speed, terrain and rider weight.
Speed and range
How fast can a CEMOTO electric dirt bike go?
| Model | Top speed (manufacturer-stated) |
|---|---|
| D02 Classic | Up to 40 mph (65 km/h) |
| D03 Pro | Up to 40 mph (65 km/h) |
| D02 Track | Up to 53 mph (85 km/h) |
| D03 Beast | Up to 53 mph (85 km/h) |
These are manufacturer-stated maximums achieved on private land or track, and are not guaranteed. Actual speed varies with rider weight, terrain, temperature, tire pressure, battery charge and riding conditions.
How far can I ride on one charge?
| Model | Maximum range (manufacturer-stated) |
|---|---|
| D02 Classic | Up to 30 miles (48 km) |
| D03 Pro | Up to 34 miles (55 km) |
| D02 Track | Up to 60 miles (96 km) |
| D03 Beast | Up to 50 miles (80 km) |
Note: the D02 Track is listed at "up to 60 miles" on its specifications and "up to 80 km (50 miles)" in its product description. The two published figures do not agree. Treat 50–60 miles as the range band and verify with the current product page.
Range figures are measured under controlled test conditions — typically a 70 kg rider, 25 °C ambient temperature and 20 km/h constant speed. They are not achievable simultaneously with top speed.
What speeds do the three riding modes allow? The bikes have three selectable modes, but verified mode-by-mode speed test data is not available, so no specific speed is assigned to each mode.
Is a 30-degree climbing claim included? No. There is no verified standardized test basis for that claim, so it is excluded from the current product information.
Note on hill-climb claims: some product descriptions state a 45° grade capability for the 6000W models. This is a marketing description rather than a standardized tested figure.
Batteries
Can I remove the battery to charge it? On the D02 Track, yes — the battery is removable and can be charged off the bike. Battery charging is described as "removable battery; can be charged off the bike."
For other models, check the product page. The D-series uses a battery compartment design; the D02 Track explicitly supports off-bike charging via the three-pin socket on the battery.
How long does a charge take?
| System | Charge time |
|---|---|
| 48V models (D02 Classic, D03 Pro) | Approximately 6 hours |
| 72V models (D02 Track, D03 Beast) | Approximately 7–8 hours |
What is the battery lifespan? Rechargeable batteries do not last forever. The average lifespan is 1 to 2 years, depending on conditions and usage.
What is the battery warranty? The warranty period, coverage and exclusions for the battery are governed by the official Warranty terms and the Warranty Claims procedure. A claim may apply where the discharge meter detects less than 70 % of available capacity, or where the voltage is abnormal and the battery cannot be charged — subject to those exclusions.
Does battery capacity drop in cold weather? Yes. Usable capacity falls with temperature:
| Battery temperature | Approximate available capacity |
|---|---|
| 14 °F | ~70 % |
| 32 °F | ~80 % |
| 70 °F | ~90–95 % |
Controls and settings
Is the top speed adjustable like other high-performance brands? Yes. The CEMOTO D-series uses a programmable controller. It comes with a factory-set limit for local compliance and can be switched to competition-focused off-road settings where allowed.
The display also exposes a speed limit parameter (P08, 0–100 km/h) and a controller current limit (P14). See Display & Settings.
Does the D02 Track have a horn? No. The D02 Track ships in a track configuration without a horn. The D02 Classic also removes the horn as part of its lower-cost, off-road-first specification.
Does the bike have reverse? The D02 Track has a built-in reverse mode for easier manoeuvring on narrow trails. Other D-series models do not list reverse.
Rider fit
How do I know what size bike to order? Choosing the right size is crucial for comfort and control. Each bike model's product page has a detailed size chart based on rider height. Measure your height carefully and refer to that chart.
Sizing can vary between models. If you fall between sizes, consider your riding style — a smaller size may be more agile, a larger size more stable — or contact support for personalized advice.
What rider height is each D-series model designed for?
| Model | Rider height | Seat height |
|---|---|---|
| D02 Classic | 4'11"–5'10" (150–178 cm) | 28.74 in |
| D03 Pro | 4'11"–5'10" (150–178 cm) | 28.3 in |
| D02 Track | 5'9"–6'5" (175–195 cm) | 31.89 in (81 cm) |
| D03 Beast | 5'9"–6'5" (175–195 cm) | 31.9 in (81 cm) |
Fit also depends on inseam, balance, strength and riding experience — not height alone.
What is the maximum load?
| Model | Maximum load |
|---|---|
| D02 Classic | 287 lb |
| D03 Pro | ~265 lb |
| D02 Track | 265 lb (120 kg) |
| D03 Beast | 287 lb |
Rider weight, equipment and anything carried on the bike should remain within this limit. Overloading damages electrical components and the damage is not covered by warranty.
Is the D02 Classic suitable for teen riders? Yes — it is marketed for teens and adults who fit the bike. Suitability also depends on maturity, strength, training and experience. Adult supervision and appropriate protective gear are recommended for teen riders.
How can I restrict speed for a younger or less experienced rider? Two methods, used together:
- Stay in the lowest power gear (1st / ECO mode).
- Lower the speed limit parameter (P08) to the desired maximum.
You can also reduce the controller current limit (P14) and adjust power sensitivity (P11) and start intensity (P12) to soften throttle response. See Rider Fit & Sizing.
Street legality
Are CEMOTO bikes street legal?
D-series electric dirt bikes: no. They are intended for off-road use on suitable private property and tracks. They are not marketed as street-legal commuters, and riders should check all applicable local laws before use.
eBikes: partially. CEMOTO eBikes are designed for on-road and improved-trail use. Some models are explicitly described as Class 2 street legal — for example the EB40, which lists a 20 mph top speed as "Class 2 Street Legal."
Where can I ride an electric bike? An electric bike is legally treated the same as a normal bike in many jurisdictions. You can ride an electric assisted bike anywhere you can ride your regular bike — subject to local law.
Important: riding laws for electric dirt bikes vary significantly by country, state and municipality. It is the rider's responsibility to confirm local requirements. See Riding Laws & Compliance.
Design and components
What is a fat tire eBike, and why should I choose one? Fat tire eBikes are designed with extra-wide tires — 4.0 inches on CEMOTO models — that provide exceptional traction and stability on various terrains, including sand, snow, mud and rocky trails. They offer a comfortable and controlled ride, making them well suited to off-road adventures and exploring varied terrain.
What are the benefits of an electric mountain fat tire bike?
- Enhanced traction — conquer loose terrain with confidence
- Improved stability — the wide tires provide a more stable, balanced ride
- Increased comfort — the tires absorb bumps and vibrations for a smoother ride
- Extended capability — access terrain that narrower tires cannot handle
What type of terrain can a commuter bike ride on? Commuter eBike tires are designed to be versatile and can be ridden on both smooth and rough surfaces, including roads, gravel, dirty trails, rocky areas and even wetlands. For more challenging terrain and trails, an electric mountain bike is better suited.
Do the bikes use proprietary parts? CEMOTO emphasizes serviceable components selected for long-term support and realistic maintenance. Most components are standard, and compatible D-series parts and accessories are available through the CEMOTO accessories range.
What accessories are compatible? Many CEMOTO models come pre-equipped with mounting points for standard accessories such as rear racks, fenders (mudguards) and water bottle cages. Check the specific product description or photos for details on included mounts. Most bikes are compatible with common third-party accessories, and CEMOTO also offers a selection of compatible accessories.
If you have specific accessory questions, ask support before purchasing.
Is the D02 Classic less powerful than the D03 Pro? No. Both models use the same 3000W high-torque motor platform. The D02 Classic costs less because it removes the horn and some street-oriented hardware, making it the leaner, off-road-first option.
eBike model comparison
For the CEMOTO eBike range, the published specification tables give the following. Full detail on each model is on the model pages linked below.
| Model | Motor | Battery | Top speed | Tires | Brakes | Frame |
|---|---|---|---|---|---|---|
| EB40 | 750W BLDC | 48V 15Ah | 20 mph | 26×1.95 KENDA | Hydraulic disc (XOD) | 6061 alloy |
| AEB31A | not published | not published | not published | not published | not published | Step-thru |
| B28 | 500W | 48V 13Ah | 20 mph | 27×2.35 | Disc | 6061 alloy |
| B28A | 750W BLDC | 48V 15.6Ah | 20 mph (table) | 26×4.0 CST (fat) | Hydraulic disc (XOD) | 6061 alloy, high step |
| B28D | 750W (1,500W max) | 48V 15.6Ah | 20 mph | 26×4.0 CST (fat) | Hydraulic disc (XOD) | 6061 alloy, folding |
| EB66 | 750W BLDC | 48V 15Ah ×1 or ×2 | 20 mph | 20×4.0 KENDA (fat) | Tektro disc | Carbon steel |
All models list a 120 kg load capacity and SHIMANO 7-speed gearing. See the eBike overview for the naming map, since some models appear under more than one designation.
Which eBike should I choose?
- Commuting on pavement → EB40 or AEB31A — step-thru frames, efficient narrower tires
- Trails with some climbing → B28 — 27.5" wheels, lightest weight, quickest charge time
- Sand, snow, mud or very rough ground → B28A — fat tires at high step
- Need to fold or store it small → B28D — folding frame with fat tires
- Maximum range or distinctive styling → EB66 with the dual-battery option
Which D-series model should I choose?
| Model | Best for | Key difference |
|---|---|---|
| D02 Classic | Riders 150–175 cm, all-round off-road | 48V 21Ah, 3000W peak, 40 mph, ~30 mi |
| D03 Pro | Riders 150–178 cm, longer range | 48V 23Ah, 3000W peak, 40 mph, ~34 mi |
| D02 Track | Riders 175–195 cm, maximum performance | 72V 25Ah removable, 6000W peak, 53 mph, ~60 mi |
| D03 Beast | Riders 175–195 cm, high performance | 72V 25Ah, 6000W peak, 53 mph, ~50 mi |