Yes, from the pricing, I'd have to guess that CX50 cranks are Tiagra. The non-series FC-R460 seems to be cheaper and comes in 48/34 as an option if you don't want CX gearing.
The R460 is nicer looking and cheaper, confit de canard!
@Thuekr started
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Yes, from the pricing, I'd have to guess that CX50 cranks are Tiagra. The non-series FC-R460 seems to be cheaper and comes in 48/34 as an option if you don't want CX gearing.