Enough already! Anyone ever hear of yoga? Yoga relies heavily on flexibility training exercises — that’s a fancy name for stretching!

Moreover, any and every activity that elongates muscles, joints and connective tissues anywhere in your body is stretching. Everyone stretches.

More specifically, to the point of the OP’s question, anyone fit enough to do vigorous activity benefits from warming up and cooling down their muscles and joints and connective tissues beyond the thresholds that will be used during the most strenuous periods of activity. It’s really just common sense.

There are are lots of professional trainer guides available on how to do this safely, efficiently, quickly and easily.

Or don't do whatever it is you consider specific “stretching.” That won’t necessarily hurt you, but you will absolutely be missing a key piece of a well-rounded workout.

Either way, best of fortune and happy cycling!