Group 1 - The core viewpoint of the article highlights the significant increase in indoor cycling demand due to winter weather, with JD's sales data showing a more than 280% year-on-year growth in cycling trainer sales since November, making it a "phenomenal product" for home fitness during winter [1] - JD has partnered with the well-known cycling brand Mijian to launch a promotional campaign offering cash back for customers who purchase cycling trainers and complete a specific cycling challenge [1][3] - The promotional activity runs from December 10, 2023, to February 28, 2026, where customers can receive a cash subsidy of 300 yuan by completing a 28-day cycling challenge of 20 kilometers per day [1][4] Group 2 - The "smart cycling trainer" is described as a fitness device that allows users to ride indoors by fixing their bicycles onto a stable support structure, compatible with most bike models and requiring minimal space [3] - The smart cycling trainers offer adjustable resistance and can connect via Bluetooth to cycling apps, simulating real road conditions and providing an immersive training experience [3] - The two featured models, Mijian T600 Eco and T500, are highlighted for their performance and user-friendly features, with the T600 Eco supporting up to 2800W power output and 27% slope simulation, while the T500 offers nine types of road feel without needing an external power source [4] Group 3 - JD has a long-standing commitment to the cycling sector, continuously enhancing product variety and service experience, and plans to expand the cash back campaign with more brands to promote home fitness and technological cycling experiences [6] - The campaign encourages consumers to engage in indoor cycling, emphasizing that exercise should continue even during winter [6]

Core Insights - The 2025 China Service Trade Fair is being held in Beijing from September 10 to 14, showcasing a variety of smart sports equipment [2] Industry Highlights - The sports exhibition area features advanced technologies such as laser shooting, drone test flights, and simulated skiing [2]