The BONUS Commuting and Fitness Dual Purpose Bicycle is a multifunctional health and fitness product that combines the advantages of a road bike and a stationary bike. This product uses a shaft drive system to provide efficient energy transfer and a smooth riding experience. The meticulously designed gear set connects the rear wheel and the flywheel, simulating a realistic riding feel. The quick-release design allows users to easily switch between road bike and stationary bike modes, adapting to different scenarios. The product also features energy utilization capabilities, where the power generated during riding can charge mobile phones or be stored in the onboard battery. Aesthetically, the BONUS adopts a combination of modernism and minimalism, emphasizing simplicity and practicality. The hand-tightening and snap-in design make the operation process extremely convenient. This product not only promotes the integration of sustainable commuting and a healthy lifestyle but also allows for parameter adjustments based on user needs, such as resistance and seat height, to meet personalized riding requirements.