Comparison 2E EB19 vs 2E EB17

Type of Electric Bicycle — a structural class of model that defines the seating position, frame geometry, wheels, suspension, and main purpose of the bike.

— Mountain (MTB). An electric bicycle for rough terrain, dirt roads, forest trails, and moderate off-road conditions. It usually has a strong frame, wide tires, a suspension fork, or full suspension, and the motor helps to climb hills and navigate difficult sections of the route more easily.

— Downhill / freeride / enduro. Reinforced mountain e-bikes for aggressive riding, steep descents, rocks, roots, jumps, and complex trails. These models often feature powerful brakes, long-travel suspension, and robust frames but are heavier, more expensive, and less practical for regular city rides.

— Trail. A versatile type of mountain electric bicycle for forest trails, hilly terrain, dirt roads, and moderately difficult descents. Compared to a regular MTB, it is often better prepared for active trail riding, and compared to enduro or downhill models, it remains lighter, more practical, and more convenient for everyday routes.

— Urban. A model for daily city rides, bike lanes, and smooth asphalt. For this type, comfortable seating, fenders, a luggage rack, lighting, a kickstand, and convenience are more important than maximum passability or sports speed.

— Road. An electric bicycle for riding on asphalt, in parks, along...embankments, and on suburban roads. In essence, it is closer to a universal bike for smooth surfaces: faster and lighter than an urban bike but usually not as sporty and demanding in terms of seating as a road bike.

— Touring. A bike for long trips, cycling journeys, and routes with baggage. It is usually designed for stability, comfortable seating, range, and mounts for racks, bags, and fenders, making it well-suited for trips outside the city and multi-day routes.

— Cruiser. A comfortable electric bicycle with a relaxed seating position, wide handlebars, and a design for leisurely rides. This type is convenient for strolling, resort areas, and smooth city routes but not intended for a fast pace, steep climbs, or sporty handling.

— Road bike. A lightweight high-speed e-bike for asphalt, long distances, and sports riding. It usually has narrow tires, aerodynamic seating, and a minimal set of extra equipment, with electric assistance used not for “moped” riding but to maintain pace on climbs and long routes.

— Gravel. An electric bicycle for mixed routes: asphalt, dirt roads, packed forest roads, and light off-road. It is faster and sportier than a touring bike but more stable and versatile than a road bike thanks to wider tires, baggage mounts, and a relaxed geometry.

— Fatbike. An electric bicycle with very wide tires for sand, snow, loose terrain, and rough roads. The large tires provide good passability and absorb bumps, but they increase weight and rolling resistance, so the motor is particularly useful here.

The maximum weight for which the frame, wheels, suspension, brakes, and other components of the electric bike are designed. This usually implies the weight of the rider along with baggage and accessories: for example, a backpack, basket, child seat, or load on the luggage rack. It is not advisable to exceed this limit, as the additional weight reduces maneuverability, increases braking distance, and accelerates wear on the wheels, spokes, hubs, and frame.

Approximate distance that an electric bike can travel on a single battery charge. Specifications usually indicate an estimated value, as the actual range depends on the chosen level of assistance, rider's weight, terrain, speed, temperature, and tire pressure. For example, in economy mode, an e-bike can travel significantly further than when constantly riding with maximum support and speed downhill.

The electric motor rating in watts, which shows how actively it assists during acceleration, uphill riding, and riding with a load. For relaxed city trips and bike paths, a motor of around 250 W is often sufficient; for suburban routes, hills, and heavier riders, a reserve of 350–500 W is more convenient, while ratings of 750 W and above are more common on powerful fat bikes, cargo, and off-road models. When choosing, keep in mind that high power drains the battery faster and does not always mean higher speed: actual performance is also affected by torque, bike weight, battery capacity, and controller settings.

The maximum speed at which an electric bike can accelerate using the electric motor. For relaxed city rides and bike paths, models with a limit of around 25 km/h are usually sufficient, while options with speeds of approximately 30–35 km/h are found for suburban routes and more dynamic riding. Higher speeds are more common in powerful off-road bikes, fat bikes, and high-speed models.

It is worth considering that the actual speed depends on the motor's power, rider's weight, battery charge, terrain, wind, and controller settings. In some cases, it may also be limited by traffic regulations or firmware.

Brake mechanism on the front wheel, responsible for a significant part of the bicycle’s deceleration. This component is especially important for an e-bike due to its greater weight and higher speed: on descents, wet asphalt, dirt roads, and during sudden stops, the type of brake affects not only comfort but also safety.

— Rim. The pads press against the wheel rim and slow the bicycle through friction. This type of brake is simple, lightweight, and inexpensive to maintain, but performs worse in rain, mud, and under heavy loads, so it is better suited for relaxed city riding and budget models.

— Mechanical disc. The brake pads clamp a disc on the wheel hub, with force from the lever transmitted via a cable. Compared with a rim disc brake, it performs more consistently on wet roads and is better suited for a heavy e-bike, but requires periodic adjustment of the cable and pads.

— Hydraulic disc. Force from the lever is transmitted to the brake caliper through hydraulic fluid. This type of brake usually provides the most powerful and precise stopping performance, making it well suited for electric mountain bikes, fat bikes, descents, high speeds, and riding with loads, but it costs more and is more difficult to maintain.

— Roller. An enclosed hub brake in which deceleration takes place inside a special mechanism with rollers. It is well protected from dirt and rain, does not require frequent adjustment,...and is convenient for city bicycles, but is less powerful than disc brakes during active riding and long descents.

— Drum. The brake mechanism is located inside the hub, where the pads press against the inner surface of the drum. This design is protected from moisture and dirt, durable, and low-maintenance, but is usually heavier and less effective during sudden braking than disc systems.

The braking mechanism on the rear wheel, which helps control speed, stabilize the bicycle, and safely modulate deceleration. On an electric bike, it is especially important when riding downhill, on rough terrain, wet roads, and with additional load, although the main braking force is usually on the front wheel. — Rim. Pads press against the rim of the rear wheel and slow the bike down through friction. This brake is simple, lightweight, and inexpensive to maintain, but performs worse in rain, mud, and when the rim is worn, so it is better suited for calm city rides. — Mechanical disc. Pads clamp the brake disc on the rear wheel, and the force from the handle is transmitted by a cable. This is a more stable option for an electric bike than a rim brake: it handles moisture and dirt better but requires periodic adjustment of the cable and pad position. — Hydraulic disc. The brake disc is clamped by a caliper, and the force is transferred through hydraulic fluid. This rear brake is well-modulated, requires less effort on the handle, and is suitable for heavy e-bikes, mountain routes, fat bikes, descents, and active riding. — Roller. A closed hub brake, with a mechanism containing rollers located inside the housing. It is protected from dirt and rain, requires almost no attention in daily use, and is convenient for city models, but is less powerful than disc brakes during sharp deceleration and extended descents. — Drum. Pads work inside a drum in the hub of the rear wheel. T...his design is durable, protected from the environment, and suitable for leisurely rides, but usually heavier and less effective at intensive braking than the disc system. — Coaster. Braking is activated by pedaling backward, and the mechanism is usually located in the rear hub. This is a simple and dirt-protected solution for city and leisure bikes, but it is less suitable for high-speed electric bikes, steep descents, and situations requiring precise modulation of braking force.

Ampere-hours indicate the electric charge that an e-bike battery can deliver during operation. This value helps roughly estimate how long the motor can be powered, but on its own it does not provide an accurate understanding of the range, because it does not take the battery voltage into account. For example, 10 Ah batteries at 36 V and 48 V will have different energy reserves, even though their ampere-hour rating is the same. Therefore, it is useful to consider Ah together with voltage and capacity in Wh.

Watt-hours indicate the total energy reserve of the battery and are more suitable for comparing the range of different electric bicycles. This measure takes into account both the capacity in amp-hours and the system voltage: for example, a 36V battery with 10Ah has about 360Wh, while a 48V battery with 10Ah has about 480Wh. The higher the Wh value, the greater the potential range, but the actual distance still depends on the rider's weight, motor power, terrain, speed, assistance mode, and temperature.