I know there are so many arguments for an against.

Here is my own experience and observations, based on my clients, who are relatively fit, but trying to train for riding stronger and racing...mountain bike mostly, yes i know, not the same as road, but fitness is fitness and these clients were using road riding for cross training.

I noticed that when they were consistent with their training, they could ride better and stronger. When they stopped their training, they tended to get lots of minor injuries. My own opinion - they are MOSTLY fit, but certainly not any where near elite level. They kept thinking that riding more and more would make them better riders, but inherent weaknesses would creep up and prevent huge improvements.

Plyometrics requires a HUGE amount of core stability. Most people don't have this. I think most people would benefit MORE from a good core program, than plyos.

Be well

H