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They aren't the same thing. One is a bicycle model line. The other is a name for the top tier level of certain models of bikes that Specialized offers.

Now that I think about it, they are both bicycle lines made by Specialized. One is much more aggressive race bike , the other one is an endurance road bike. Thanks and again, it was just a joke.

You still don't have it correct.

Both the relaxed geometry Roubaix and the race geometry Tarmac come in the S-Works line. As well as models from much of the other bikes that Specialized makes.

S-Works is the name Specialized puts on some of it's top tier bikes. These are bikes of various models. But are equipped with some of the best SRAM or Shimano components along with some of the best wheelsets and other stuff you can put on a bicycle.

Essentially, if you want a particular bike Specialized makes, and you want it with all the best stuff on it, then you buy their S-Works version. And sometimes when a new frameset version comes out, you might only find it first as a S-Works offering. But soon after they'll start introducing it at the lower tier levels too. But not as S-Works.


Here are all their S-Works current offerings..... https://www.specialized.com/us/en/sh.../s-works-bikes

But most of the same models with lesser components can be found there too. Just click on bikes in the top left and shop all, and it'll clear the S-Works filter.