Electric bicycles have become the ideal choice for modern city dwellers for commuting, leisure rides, school runs, and even light cargo transport. However, many buyers often overlook a key component — the frame. The frame not only determines the bike's overall style but also directly affects the riding experience, comfort, safety, and suitability for different uses.
Choosing the wrong frame type can significantly impair your ride. For example, it can make mounting and dismounting awkward. The frame's appearance might not match your personal taste—affecting your satisfaction when you receive the electric bike—and if your cargo needs aren't met, your overall riding experience will suffer. Today, we'll explore five common types of e-bike frames, and who they suit best. Hopefully, this guide will help you find the perfect bike for your needs.
1. Step-Through Frame
The step-through frame features a low top tube or an open frame design, making the bike look approachable and lightweight with smooth lines. With little or no crossbar—or one positioned very low near the pedals—mounting and dismounting require minimal effort. You can simply step over the frame without lifting your leg high, which makes it especially suitable for those wearing skirts or professional attire, or for riders with limited knee mobility. Electric commuter bikes like the Fiido C11 Pro, Fiido C11, and Fiido C700 fall into this category, combining elegant styling with a hidden battery design for both convenience and aesthetics.
2. Step-Over Frame
This more traditional and classic frame features a slightly higher crossbar with a sturdy triangular structure. The lines are sharper and more compact, resembling the standard bicycle frame most of us are familiar with. While this frame demands slightly more flexibility when mounting, its stability delivers a solid and efficient ride. Both the Fiido C21 Gravel E-Bike and the Fiido Air incorporate this design, offering power and poise, making them ideal for commuters and sporty riders.
3. Longtail Cargo Frame
Longtail frames are immediately recognisable by their extended rear section, giving the bike a longer profile that resembles a compact two-wheeled utility vehicle. Designed not for lightness but for carrying capacity, these frames accommodate larger racks, child seats, and pannier mounts. They are popular among food delivery riders, families, and small-scale couriers. Riding one feels like handling a two-wheeled SUV: stable, powerful, and capable of carrying children or loads of up to 200kg without sacrificing control. The Fiido T2 Cargo E-Bike is a prime example, featuring a robust rear rack, a powerful 60Nm motor, and a large battery that can last up to 110km on a single charge.
4. Folding Frame
Folding frames are compact and feature visible folding joints and quick-release locks, allowing the bike to fold or unfold in seconds. This convenience makes them perfect for multi-modal commuting involving trains, buses, or cars. They also suit limited storage spaces such as offices, stairwells, or car boots. Fiido offers a range of folding electric bike including the Fiido D11, M1 Pro, D3 Pro, and L3. While all share the folding convenience, each varies in design philosophy, ride feel, and target user. The The Fiido D11 is lighter and simpler, suited for daily commutes and short trips with quick folding. The M1 Pro leans towards off-road capability, equipped with fat tyres, front and rear suspension, and a powerful motor; although foldable, it is bulkier when folded, catering to those who prioritise performance and comfort. Meanwhile, the D3 Pro and L3 are mini folding bikes designed for tight storage environments.
5. Integrated Frame
The hallmark of integrated frames is their ‘hidden’ design. Batteries, wiring, and motor control systems are seamlessly embedded within the frame itself, resulting in a sleek, minimalist look with no visible bulk. This style appeals to users who value a clean aesthetic and cohesive details, combining functionality with visual harmony. The Fiido Air carbon fibre e-bike perfectly embodies the integrated design concept. The entire bike—including the frame, fork, stem, and seat post—is crafted from carbon fibre with a consistent colour scheme. The battery is cleverly embedded inside the seat tube, with internal wiring that creates a minimalist and harmonious appearance. The Fiido Air has earned the prestigious Red Dot Design Award for its outstanding design and craftsmanship.
As a Final Note
The frame is more than just the bike's skeleton—it directly influences your ride experience. It can serve as a practical daily commuter, a dependable lifestyle companion, or a statement of personal style. Fiido offers a variety of frame styles to meet diverse user needs and scenarios. If you’re unsure which to choose, start by considering the frame type that best suits your lifestyle and riding habits—this will make selecting the right model much easier.
For guidance on choosing the correct frame size, height, and angle, we recommend Fiido's official detailed guide: What is the Right Size Electric Bike for Me?, helping you make an informed decision.
