How much fitness plays a vital role in cycling racing?

We all know that sports are related to fitness very much and especially these days. Some sports needed skills more than fitness like golf and some sports needed fitness more than skills like racing etc.

I however doubt that which of these two things more related or needed to be in the cycle race because it is very much about fitness that how much we paddle and get our cycle one-inch cm more than the other one.

Thanks for this platform and hope you reply to me as soon as possible.
Fitness, tactics and support from your team are all important in professional bike racing.

But if you aren't fit enough to keep up so you're there at the end, nothing else matters.