Is it really necessary to target a wide range of core muscles for optimal cycling performance, or can focusing on a specific subset of muscles, such as the transverse abdominis and obliques, be just as effective in improving overall cycling mechanics. Some argue that a strong core is essential for maintaining good posture, generating power, and reducing fatigue, while others believe that overemphasizing core strength can lead to overcompensation and decreased efficiency on the bike. What are the essential core muscles that cyclists should prioritize, and are there any exercises or training methods that can be detrimental to cycling performance if overdone.