Originally Posted by
5teve
Not a typo evidently:
https://gravelcyclist.com/bicycle-te...CsARGqI2Ngizl8
“...RX810 series cranks offer Shimano’s widest-ever delta between small and large chainrings, a 17-tooth gap, that also debuts the company’s first ever 48-31T option. This, when paired with the available 11-34 cassette, offers an exceptionally low climbing gear while maintaining a 48-11 ratio that allows riders to take advantage of strong tailwinds and long descents..."
I'll wager it is a typo. A systemic one. Shimano did this with their wheel line-up last year with their wheelset labeling and ad-copy and press-releases.....and stealth-updated all that official material after consumers loudly complained about false advertising.
A 17T FD is just to odd to not be a typo. They're always 16T.