While I understand the appeal of trying to mimic outdoor rides during indoor training, I have to respectfully disagree with the idea that it's necessary to follow the concept of specificity so precisely.
For one, indoor cycling often involves a different type of exertion and effort than outdoor rides, especially when it comes to gear selection and cadence. The resistance and gear settings on indoor bikes may not perfectly align with what you'd experience on the road, and trying to force a precise match may even lead to ineffective or even counterproductive training.
Furthermore, cycling is not just about physical exertion, but also about mental and emotional engagement with the environment and the ride itself. Indoor training can't fully replicate that experience, so why limit yourself to trying to mimic it so closely?
Instead, I'd encourage you to embrace the unique aspects of indoor cycling and use it as an opportunity to focus on specific training goals, such as building endurance, improving power output, or honing your technique. By doing so, you may find that your indoor training becomes even more effective and rewarding.