Originally Posted by
Doge
I'm told SRAM patent the narrow wide and does not bother suing the Wolf Tooth likes that use it. I have not looked that up to see if it is true. If it is true, Shimano has a stake in both selling the FD and their 2X front shifting which is the best anywhere.
Shimano has 1x drivetrains for mountainbikes (see XT M8000-1 cranks for example) so it isn't a patent issue.