How Fast Do Electric Bikes Go? Speeds by Class and Model

How fast do electric bikes go? Most electric bikes sold in the US are built to stop helping you at either 20 mph or 28 mph. Class 1 and Class 2 e-bikes cut motor assistance at 20 mph, and Class 3 e-bikes keep assisting up to 28 mph. You can still go faster on your own power or downhill; the motor simply stops adding to your effort.

In everyday riding, the speed you actually hold depends on how the bike is set up, the motor, the rider and the route. This guide explains the speed limits that define an e-bike, what changes the speed you actually ride at, and the published top speeds of the bikes we carry.

How fast do electric bikes go? Speeds by e-bike class

In most US states, the speed an e-bike is allowed to reach under motor power is set by its class. California’s definitions in Vehicle Code Section 312.5 are typical, and the same three-class model is promoted by the industry group PeopleForBikes:

California’s definition also caps the motor at 750 watts. At the federal level, a “low-speed electric bicycle” under 15 U.S.C. 2085 has working pedals, a motor under 750 W, and a top speed under 20 mph on motor power alone with a 170-pound rider on flat pavement. That federal rule governs the bike as a consumer product; where and how you can ride it is set by your state and local rules.

For a deeper look at each class, licenses and where you can ride, see our e-bike classes and laws guide.

Top speed on an e-bike means assisted speed

An e-bike’s “top speed” is the point where the motor cuts out, not a hard ceiling. On a Class 1 or Class 2 bike set to 20 mph, you can pedal past 20 mph on a flat road or roll faster down a hill. Above the cutoff, you are pushing the full weight of the bike with no help, and most e-bikes are heavy, so holding speeds well above the limit takes real effort.

That is why two bikes with the same 20 mph limit can feel very different. A light commuter with tall gearing is easier to pedal past the cutoff than a 90-pound fat tire bike with knobby tires.

What changes how fast an e-bike goes

The speed limit setting

Many e-bikes let you choose the assist cutoff in the display menu. The Himiway D5 2.0, for example, ships at 20 mph and can be adjusted from 4 to 28 mph, with Class 1, 2 and 3 settings. Changing that setting changes which class the bike is operating as, so pick the one your local rules allow.

Motor power and torque

Motor wattage and torque matter most for acceleration and for holding speed on hills and into headwinds. A stronger motor reaches the cutoff sooner and keeps you closer to it on a climb, but it does not raise the legal limit. Mid-drive motors work through the bike’s gears, which helps them hold speed on steep grades.

Battery size

Battery capacity, measured in watt-hours (Wh), mostly decides how far you can go, not how fast. Riding near the top of the assist range uses more energy per mile, so speed and range pull against each other. Our long-range electric bikes guide explains how to estimate range.

Tires, weight, wind and hills

Wide, knobby fat tires grip well on sand, snow and dirt but roll more slowly on pavement than narrower commuter tires. Rider weight, cargo, headwinds and hills all add load, so the same bike will feel slower with a loaded rack on a climb than with a light rider on a flat bike path.

Your own pedaling

On pedal-assist bikes, the motor adds to your effort. Pedaling at a steady cadence in the right gear gets you to the cutoff faster and uses less battery than relying on the motor alone.

Top speeds of the e-bikes we sell

The table below lists only speeds published on our product pages or by the manufacturer. Prices are at the time of writing (October 2026) and are in USD.

A note on the Italian bikes: Italwin and Wayel e-bikes are built to the European pedal-assist standard, with 250 W motors and assistance that stops at 25 km/h, which is about 15.5 mph. They are designed for comfortable city and touring riding, not for chasing 28 mph. If top assisted speed is your priority, look at the Himiway models above.

The D7 Pro’s 1000 W motor is above the 750 W cap used in California’s definition and in the federal consumer-product definition. In states that use that cap, a bike with a larger motor may not be treated as an e-bike, so check your local rules before riding it on public roads or bike paths.

What are the fastest e-bikes?

Among street-legal e-bikes, the fastest are Class 3 models that assist to 28 mph. That includes speed-focused commuters and some fat tire bikes that offer a Class 3 setting, like the D5 2.0 family in our fat tire e-bikes range. For daily riding on pavement, a lighter bike from our commuter and city e-bikes collection is usually easier to keep near its limit.

Moped-style e-bikes such as the Himiway Escape Pro look fast, but their style does not change the rules: they are speed-limited like any other e-bike, so check the published spec and class label rather than judging by looks.

Anything that goes faster than 28 mph under motor power falls outside the Class 1 to 3 definitions. Depending on the state, it may be treated as a moped or motor vehicle, which can bring license, registration and insurance requirements.

Is it legal to ride faster? Speed rules on roads and paths

Speed rules for e-bikes come from several layers, and they vary by state and change often:

• Class 3 limits. In California, riders must be at least 16 to operate a Class 3 e-bike, and every Class 3 rider and passenger must wear a helmet (Vehicle Code 21213).
• Paths and trails. California lets local authorities decide whether e-bikes, or certain classes, can use specific trails (Vehicle Code 21207.5). Many cities and parks post their own speed limits on shared paths.
• Federal land. The National Park Service allows e-bikes only where regular bicycles are allowed, and superintendents can limit some trails to certain classes.
• Modifying the bike. California requires the class label to be replaced if a bike is modified so its speed or engagement changes (Vehicle Code 24016).

Before you raise a speed setting, confirm what your state, city and the paths you ride allow.

Riding faster safely

Higher speed means longer stopping distances, and other road users often misjudge how quickly an e-bike is approaching. A few habits help:

• Choose a bike with hydraulic disc brakes if you plan to ride near 28 mph.
• Wear a properly fitted helmet, whatever your state requires.
• Slow down on shared paths and when passing pedestrians.
• Check tire pressure and brake pads regularly; both affect control at speed.

FAQ

How fast does a Class 2 e-bike go?

A Class 2 e-bike’s motor, including the throttle, stops helping at 20 mph. You can pedal faster than that, but the extra speed comes from your legs or a downhill.

How fast do Himiway e-bikes go?

It depends on the model. Himiway lists the A3 at “20+ mph” and the D7 Pro at 28 mph. The D5 2.0 family ships at 20 mph and can be set anywhere from 4 to 28 mph. The C1 kids bike tops out at 15 mph in its high-speed mode.

Can I make my e-bike go faster?

Some bikes let you raise the assist limit in the display settings, up to the highest class the bike supports. Changing the setting can change its legal class, and tampering beyond the manufacturer’s settings may mean it no longer counts as an e-bike in your state.

Why do Italwin e-bikes stop assisting at 15.5 mph?

Italwin and Wayel bikes are built to the European standard, which limits pedal assist to 25 km/h (15.5 mph) with a 250 W motor. You can ride faster under your own power.

How fast can a kids e-bike go?

The Himiway C1 has a low-speed mode at 4, 7 or 9 mph and a high-speed mode at 7, 13 or 15 mph, according to Himiway. Parents can start with the low mode and step up as the child gains skill.

How Fast Do Electric Bikes Go? Speeds by Class and Model