I think Roubaix is BSA bottom bracket versus BB86 on the Argon, which is a big deal for many. I recommend taking a close look at the stack and reach numbers, as Roubaix has typically been outside the average endurance geometry (more stack / less reach).

From the charts, Roubaix 58 stack is 644 while Argon offers "3D+" that they claim allows variation of 601-625, still quite a bit off from Roubaix.

If you do go the SRAM AXS route, I see Argon is using the DUB crank. Everything I've seen suggests even with DUB the bearings are kind of marginal for BB86 and traditional GXP might be better (though I know many folks dislike GXP design).

scott s.
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