To calculate the torque required for a bicycle with 26-inch diameter wheels and a total weight of 200 pounds to maintain a constant speed of 20 mph, one must consider factors such as rolling resistance, even in the absence of air resistance. The discussion emphasizes the importance of showing calculations and thought processes rather than seeking direct answers, as this encourages learning. Participants are reminded that the forum does not provide solutions to homework questions but offers guidance instead. The conversation also hints at the need to consider other forms of resistance that may affect torque requirements. Engaging in this analytical approach will lead to a better understanding of the physics involved.