Looking for a 40 MPH E-Bike? Start With These 8 Models

Want an e-bike that goes faster? At 40 mph (about 64 km/h), you're moving at roughly the speed of a car on a road with a 40 mph speed limit, much faster than a typical bicycle. Below, we compare eight e-bikes that can reach 40 mph, looking at their motors, batteries, brakes, and key features.

Best 40 MPH Electric Bikes at a Glance

Some models reach 40 mph only with a specific motor configuration or riding mode. Check the exact version before buying.

1. ENGWE M20 3.0 — Best Moped Style Electric Bike

Best for: Riders who want a moped style e-bike with full suspension and the option of a second battery.

The ENGWE M20 3.0 combines a 750W rated rear hub motor with 3,300W peak power and 120Nm of torque. It can reach 40 mph in Off Road Mode. Its motorcycle inspired frame, long saddle, and 20 x 4 inch fat tires give it a different riding position from a conventional mountain e-bike.

The standard 60V 20Ah battery stores 1,200Wh of energy. Adding a second battery increases total capacity to 2,400Wh. ENGWE lists a maximum range of up to 180 miles with two batteries in PAS 1 mode. That figure applies to low assist riding, so expect a shorter range when using more power or riding at higher speeds.

The M20 3.0 has four piston hydraulic disc brakes with 203mm rotors, a 100mm adjustable front fork, and a DNM rear shock with 55mm of travel. Its Shimano seven speed drivetrain provides several gear options for pedaling. The bike weighs about 102 lbs and supports a maximum load of 330 lbs.

A hands on review by Gear Diary highlights its strong acceleration, suspension, and dual battery option. The reviewer also notes that the fixed saddle position can make pedaling less comfortable for some riders. This is worth considering if you plan to pedal regularly rather than rely mainly on the throttle.

2. TESWAY X9 Ultra — Best Dual Motor All Terrain E-Bike

Best for: Riders who want strong acceleration, dual motor power, and full suspension for hills and rough trails.

The TESWAY X9 Ultra uses two motors with a combined peak output of 4,000W and 240Nm of torque. Its top speed is 43 mph, and TESWAY lists acceleration from 0 to 31 mph in 8 seconds. The dual motor system provides power for steep climbs and loose surfaces, while the Shimano seven speed drivetrain lets riders adjust their pedaling effort across different terrain.

The bike comes with a 60V battery in either 25Ah or 30Ah capacity. The 30Ah version stores 1,800Wh of energy. TESWAY lists a range of 70–120 miles in single motor mode and 50–70 miles with both motors running. Using one motor can help extend range, while dual motor operation provides more power when climbing or riding on challenging surfaces.

The X9 Ultra has 26 x 4 inch Kenda fat tires, a full suspension system, and a 120mm front hydraulic fork. Four piston hydraulic disc brakes with 180mm rotors provide braking power at both wheels. The bike also has an LCD display with NFC unlocking, a 900 lumen headlight, and a maximum load capacity of 400 lbs.

At approximately 106 lbs, the X9 Ultra is a substantial bike to lift or transport. Its wide tires, suspension, and dual motor setup make it more suitable for riders who prioritize power and all terrain capability than for those seeking a lightweight commuter. The choice between the 25Ah and 30Ah battery versions also affects how much stored energy you have for longer rides.

3. FREESKY Ranger Plus M-540 — Best Step Through Dual Motor E-Bike

Best for: Riders who want dual motor power and a step through frame that's easier to get on and off.

The FREESKY Ranger Plus M-540 uses two hub motors with a combined peak output of 5,000W. Its 48V 30Ah battery stores 1,440Wh, and the bike can reach 40 mph in its high speed configuration. The dual motor setup provides extra power for hills and loose surfaces, while the step through frame makes mounting and dismounting easier.

FREESKY lists a range of 60–120 miles when using one motor and 40–60 miles when using both. These figures depend on riding mode and conditions. Using both motors draws more power, so the battery capacity matters if you expect to ride longer distances.

The bike has 26 x 4 inch fat tires, a 120mm front suspension fork, and a rear coil shock. Four piston hydraulic disc brakes with 180mm rotors handle braking, while the Shimano seven speed drivetrain supports pedal assisted riding. The Ranger Plus weighs about 95 lbs and has a listed maximum load capacity of 400 lbs.

The step through design is useful for riders who prefer not to lift their leg over a high top tube. However, the bike is still heavy to carry or load into a vehicle. Redtail Ebikes' review provides more details on its components and setup.

4. TakeMov G35 — Best for Larger Battery Options

Best for: Riders who want a choice of battery sizes, including a dual battery setup for longer trips.

The TakeMov G35 comes in several configurations. The 48V 25Ah and dual 25Ah versions are listed with a top speed of 40 mph, while the 48V 15Ah version is rated at 33 mph. Make sure to select the right version if top speed is a priority.

The 25Ah battery stores 1,200Wh. The dual battery version combines two 48V 25Ah packs for 2,400Wh of total capacity. TakeMov lists maximum pedal assist ranges of up to 80 miles for the 25Ah version and 160 miles for the dual battery version. Riding speed, terrain, rider weight, and assist level will affect the distance you can cover.

The higher capacity versions offer up to 2,000W peak motor output. TakeMov lists maximum torque of 80Nm for the 25Ah version and 100Nm for the dual battery version, along with a maximum load capacity of 330 lbs.

5. HPC Scout — Best Mid Drive Mountain E-Bike

Best for: Riders who prefer a mountain bike frame, a mid drive motor, and a geared drivetrain.

The HPC Scout uses a mid drive motor that transfers power through the bicycle's drivetrain. The 2,000W version is listed with a top speed of up to 40 mph. Lower power configurations have different performance specifications, so check the motor option when comparing builds.

A mid drive system works with the selected gear, which can help the rider manage power on climbs and changing terrain. The Scout's listed components include an SRAM GX 11 speed drivetrain and a RockShox Recon RL air fork with 140mm of travel. This setup gives it a more traditional mountain bike layout than the moped style models in this guide.

HPC lists Magura MT4e hydraulic disc brakes with 180mm rotors. The torque sensor adjusts assistance according to how hard you pedal, and an optional throttle provides power without continuous pedaling.

The Scout is built to order, so the final price and component package depend on the selected configuration. Its mid drive system and mountain bike components make it a distinct option for riders who want to pedal as well as use motor power. See the HPC Scout product page for the available builds.

6. Hikeep MA-S — Best for Throttle Heavy Off Road Riding

Best for: Riders who want a powerful, dirt bike style e-bike with a large battery and full suspension.

The Hikeep MA-S uses a 3,000W rated motor with 4,000W peak output and reaches a listed top speed of 40 mph. Its 60V 40Ah battery stores 2,400Wh, and Hikeep lists a maximum range of up to 160 miles in Eco Assist conditions. Riding at higher speeds will use more energy and reduce that range.

The MA-S has 20 x 4 inch fat tires, a full suspension system, a Shimano seven speed drivetrain, and hydraulic disc brakes. Hikeep lists a maximum load capacity of 500 lbs. Its dirt bike style frame and fixed saddle make it more suited to throttle led riding than to long periods of conventional pedaling.

An Electric Revolution Reviews test reported that the display reached 40 mph during a road ride. The review did not provide a GPS verified speed, so it does not confirm the exact road speed. It also described a 19 mile high throttle ride with two battery bars remaining, but the tested bike's battery specifications differed from the current 60V 40Ah listing.

The MA-S is worth considering for off road riding, but its riding position is different from that of a conventional bicycle. If you plan to pedal for much of your ride, check whether the saddle and pedal position suit you before buying.

7. HPC Titan Pro — Best Premium Fat Tire Mid Drive E-Bike

Best for: Riders who want a high end mid drive system, wide tires, and a geared drivetrain for demanding terrain.

The HPC Titan Pro uses a torque sensing mid drive motor with a throttle. Its 3,000W configuration is listed with a top speed of up to 40 mph. The mid drive system works through the drivetrain, allowing the selected gear to influence how the bike climbs and handles different terrain.

The Titan Pro has a reinforced 6061-T6 aluminum hardtail frame, a RockShox Bluto suspension fork, and 4.8 inch wide Maxxis Minion FBR/FBF tires. Its SRAM EX-1 drivetrain has an 11–48T gear range. The wide tires provide a large contact patch on loose surfaces, while the front suspension helps absorb bumps. The hardtail frame does not have rear suspension.

HPC offers an optional 1,680Wh battery and lists a range of more than 80 miles in throttle only use or up to 160 miles in Eco mode. These figures depend on riding conditions and are not estimates for continuous riding at 40 mph.

The listed price is $5,999, placing the Titan Pro at the premium end of this group. Its mid drive motor, wide tires, and high end components are the main reasons to consider it. Compare the full build and battery option before deciding whether the additional cost suits your needs. Details are available on the HPC Titan Pro product page .

8. ASKGO Dirt 5500 — Best for High Power Off Road Riding

Best for: Riders looking for a high power electric dirt bike for private land and off road areas where motorized vehicles are permitted.

The ASKGO Dirt 5500 is listed with 5,500W peak power and a top speed of 40 mph. The version reviewed by Ebike Oracle has a 48V 30Ah battery, providing 1,440Wh of nominal energy. It also has a seven speed drivetrain and knobby off road tires. The product listing does not specify a rated motor wattage, so the 5,500W figure refers to peak output.

Battery specifications vary across online listings, so check the voltage and capacity of the exact version you're buying. Some listings advertise ranges of up to 100 miles, but that figure depends on riding conditions and assist level. A 1,440Wh battery will provide less range when the bike is ridden at high power for long periods.

The Dirt 5500 has a front suspension fork, a rear shock, and a mixed braking setup with a hydraulic rear brake and a standard disc front brake. This differs from models with hydraulic brakes at both wheels. The reviewed listing does not provide a verified bike weight or clearly identify a UL battery certification, so ask the seller for those details if they matter to your purchase.

Ebike Oracle's review covers the bike's specifications, but it does not provide an independent GPS speed test. The Dirt 5500 is designed more like an electric dirt bike than a conventional commuter e-bike, so check local rules before riding it on public roads.

Five Things to Know Before Riding at 40 MPH

Range at 40 MPH

A bike's maximum range can drop significantly when you ride at 40 mph.  The faster the motor runs, the more energy it needs, especially when you accelerate frequently or climb hills.

Battery capacity gives you a useful starting point for comparison. A 60V 30Ah battery stores 1,800Wh, compared with 1,440Wh for a 48V 30Ah battery. That's 25% more energy, although actual range also depends on motor efficiency, rider weight, wind, and terrain.

A bike that can cover 30 miles at 35–40 mph on throttle alone needs considerably more battery power than one ridden at 15–20 mph. If you plan to ride fast for most of your trip, expect a shorter range than the maximum figure advertised by the manufacturer.

Braking and Tire Grip

A bike that can reach 40 mph needs brakes and tires that can handle that speed. At the same weight, a bike traveling at 40 mph has four times the kinetic energy of one traveling at 20 mph. Stopping safely becomes even more demanding on steep descents or when you need to brake repeatedly.

Hydraulic disc brakes are common on high power e-bikes, but the type of brake is only part of the picture. Rotor size, brake pad quality, heat buildup, tire grip, and the total weight of the bike and rider all affect stopping performance. A bike capable of exceeding 40 mph with poor braking performance can be difficult to control when you need to stop quickly. Smaller rotors may also struggle to manage heat during long descents, making brake rotor size worth looking at.

Tires make a difference too. Fat tires can feel stable on loose gravel and uneven ground, but wider does not automatically mean better grip on pavement. Tread pattern, rubber compound, tire pressure, and tire construction all affect how the bike handles at speed. The right tires for riding at around 40 mph depend on where you ride. For mostly paved roads, road oriented tires may be a better choice than aggressive off road tread.

Pedaling at Lower Speeds

A 40 mph top speed matters less if the bike is uncomfortable to ride at everyday speeds. You might buy a powerful e-bike for fast solo rides, then find yourself riding at 15 mph with friends most weekends. In that situation, saddle comfort, gearing, and how smoothly the motor responds at low speeds can make a bigger difference than top speed.

Saddle comfort also varies from rider to rider. A small, narrow saddle may be manageable for a petite rider on a short trip, but a larger rider or someone spending several hours in the saddle may find it uncomfortable. Saddle shape and width matter more than how sporty the bike looks.

The riding position is another difference between models. A moped style bike with a long, fixed saddle, such as the ENGWE M20 3.0, feels different from a mid drive bike with a conventional riding position and a wider gear range, such as the HPC Scout. The latter offers more flexibility for riders who want to pedal regularly, while the former puts more emphasis on its moped style design.

These differences become even more noticeable when the battery runs low. A bike weighing around 100 lbs with wide tires can be exhausting to pedal home without motor assistance. A powerful motor does not necessarily make a bike practical for exercise or longer rides if pedaling feels difficult.

Actual Speed vs. Claimed Speed

A claimed top speed of 40 mph does not necessarily mean a bike can maintain 40 mph on flat ground. A bike might reach that speed downhill but struggle to sustain it on level roads. Rider weight, wind resistance, battery charge, motor configuration, and controller settings all affect the result.

Battery voltage alone does not determine top speed. A 52V setup may approach 40 mph with the right motor and controller, but another configuration with the same voltage may perform differently. The motor and battery need to work together, and acceleration can vary even when two bikes advertise the same maximum speed. The details discussed in this 40 mph e-bike build example illustrate why the complete setup matters.

An independent GPS test on flat ground is more useful than a dashboard reading or a downhill speed record. The test should identify the exact motor and battery configuration, since different versions of the same model may perform differently.

Not every model has independently verified speed results. When no reliable test is available, the manufacturer's stated top speed is best treated as a claimed specification, not a guaranteed speed under everyday riding conditions.

Weight and Intended Use

A bike weighing more than 100 lbs can be difficult to handle even when you are not riding it. The TESWAY X9 Ultra weighs approximately 106 lbs, while the ENGWE M20 3.0 weighs about 102 lbs. Their weight may not be a major problem if you can ride straight out of your garage, but carrying either bike upstairs or lifting it into a car is a different matter.

Even a 70 lb e-bike can be difficult to carry up stairs. At over 100 lbs, a bike can become particularly inconvenient for apartment dwellers, commuters who transport their bikes by car, or anyone who needs to move it without assistance.

Where you ride matters just as much. A bike designed to reach 40 mph may fall outside the standard US Class 1, Class 2, and Class 3 e-bike definitions. Depending on the bike's configuration and your state's laws, its highest speed may only be permitted on private property or off road trails, while public road use may involve additional vehicle requirements. A bike's ability to reach 40 mph does not automatically mean it is legal to ride at that speed on public roads or bike paths.

Conclusion

These eight e-bikes offer different combinations of speed, power, battery capacity, and riding comfort. Compare their key features and choose the one that best fits your needs. Before buying, check local rules to make sure you can ride it where you plan to use it.

FAQs

Can an e-bike really reach 40 MPH on flat ground?

Yes, some high power e-bikes can reach 40 MPH on flat ground. However, actual speed depends on motor power, battery charge, rider weight, and wind. A bike may reach a higher speed downhill than on level ground.

How far can a 40 MPH e-bike go on one charge?

It depends on the battery and how fast you ride. Riding at 35–40 MPH uses much more power than riding at a low pedal assist level, so the actual range can be far below the advertised maximum. Check the battery capacity in watt hours (Wh) and look for range tests at similar speeds.

What brakes should a 40 MPH e-bike have?

Look for hydraulic disc brakes on both wheels, suitable rotor sizes, and tires with good grip for your riding conditions. Four piston brakes can provide strong braking power, but brake quality, tire grip, road conditions, and bike weight also affect stopping distance.

Can I pedal a 40 MPH e-bike at lower speeds?

Yes, but comfort depends on the bike's frame, saddle position, gearing, and motor response. Some moped style e-bikes are less comfortable to pedal for long periods than traditional mountain bikes. If you plan to ride at around 15–20 MPH with friends, check the riding position and gear range before buying.

Are 40 MPH e-bikes street legal?

Not always. In the United States, a bike capable of 40 MPH may fall outside the standard Class 1, Class 2, and Class 3 e-bike rules. Whether you can ride it on public roads or bike paths depends on the vehicle's classification and local laws. Check your state's rules before buying, including any requirements for registration, a license, or insurance.

Are cheap 40 MPH e-bikes worth buying?

They can be, but don't judge a bike by its top speed alone. Check the battery capacity, brake components, frame quality, warranty, and availability of replacement parts. A bike with clear specifications and reliable customer support is a better choice than one that only promises high power at a low price.

Can I get a 40 MPH e-bike that looks like a regular bicycle?

Yes. Some high speed e-bikes use a mountain bike style frame, while others have a moped or dirt bike style design. If you want to pedal regularly as well as ride fast, compare the frame design, gear range, riding position, and weight rather than focusing only on top speed.

Are 40 MPH e-bikes too heavy for everyday use?

Some are. High power e-bikes can weigh 100 lbs or more, making them difficult to carry upstairs or load into a car. For example, the TESWAY X9 Ultra weighs about 106 lbs. If you need to move your bike often, check its weight and think about where you will store it before buying.