Tag Archive: drive systems

  1. Over 40 e-bike brands choose Bafang’s GVT technology

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    Source: Nieuwsfiets

    E-bike systems manufacturer and LEVA-EU member Bafang has seen an enthusiastic uptake of its Gear, Variable, Transmission (GVT) technology platform and automatic gear hub since their launch at China Cycle in 2021

    The launch of Bafang’s GVT technology came after years of meticulous R&D. “This technology takes the e-bike shifting experience to a new level with precise automatic shifting mechanisms and advanced transmission control, resulting in seamless and smooth gear changes that integrate the rider and e-bike as one, turning a concept into a reality,” said Zou Bin, Chief Designer of Bafang’s GVT. “Products with GVT technology are belt drive friendly and offer a high degree of integration, allowing for more design possibilities for e-bikes.”

    The manufacturer reports that over 40 brands have chosen to install the GVT system in their products. Rudi Leusink, CEO of the Dutch e-bike brand iMove, said, “Our First Lady and President models are equipped with the automatic Bafang H700 shifting system. For those who are looking for an eBike, we strongly recommend a test ride to experience a different shifting feeling.”

    Enhanced durability

    According to Zou Bin, GVT alleviates the common maintenance issues and durability concerns associated with existing shifting systems. “It is also a further step towards extending the overall lifespan of e-bikes. In the past three years, we have launched the automatic hub motor and automatic gear hub series, both of which have received positive feedback from various markets.”

    iMove’s Rudi Leusink added, “Automatic internal shifting does not require the array of components required by external shifting systems. This fits perfectly with our design style: clean and classic, while being effective in avoiding performance impacts caused by weather, dirt or external wear, making it hassle-free for users.”

    An example product is the H700 is an automatic two-speed rear-wheel drive system. During riding, the bike automatically and efficiently shifts gears based on the bike’s speed, keeping the cadence in the zone that best suits the rider. “Compared to manual shifting, automatic shifting offers a simpler choice for cyclists, especially in busy urban areas where they can focus more on the road than on the gear shifter,” said Yingzhe Wang, Head of R&D at Bafang.

    Bafang’s design philosophy for the GVT is to simplify commuting by providing riders with a new riding and shifting experience. It can also be found in mid-motor drivetrain systems combined with automatic shifting hubs, such as the M210 mid-drive system combined with the G300A 3-speed automatic shifting hub.

    Addressing e-bike gear switching challenges

    In the e-bike industry, the shifting performance of high-power e-bikes is a regular concern; thanks to the high output power, traditional external shifting systems face increased risk of damage. To address this, Bafang developed the GVT automatic shifting hub motor series, including H700, H710 and H720, with power ranges from 250W to 1000W. In addition, the G500A 5-speed automatic gear hub released in 2024 offers a torque of up to 200Nm, effectively addressing the shifting difficulties in high-power mid-motor drive systems, especially for cargo bikes with high loading capacities, providing riders with more reliable performance. “GVT was launched three years ago, and since then, more than 40 e-bike brands worldwide have integrated our GVT products in the urban, touring, cargo and fat eBike categories,” said Yingzhe Wang. “Without the need for shifting cables or external cassettes, you will find more folding bikes and city bike equipped with GVT series products. Looking ahead, we will continue to explore more possibilities on this platform.

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