Originally Posted by
SoSmellyAir
One issue that
VegasJen has not yet considered is how would a new contemporary crank (either the inexpensive 12-speed one I linked above or an 11-speed model) work with her existing 9 or 10-speed drivetrains. Lots of variables there.
For example, I use 10-speed Shimano chain rings with an otherwise 11-speed Shimano drive train without issues, but she needs something else.
nonissue imo. Nothing sticks out as a real concern. LBS would unlikely support such setup.. it's not cookie cutter nor would all the part numbers be associated. Pretty much anything that the bicycle was never OEM fitted with would be backed by a retailer.