Originally Posted by
jprestley@comca
the Shimano website has the cryptic added comment "(available for IS mount with mount adapter)".
That would be a mistake, the same thing is also on the MTB brakes that are PM, you can attach PM brakes to IS mounts with adapters, there is no adapters for attaching FM brakes to IS mounts.
http://productinfo.shimano.com/#/spe...20disc%20brake)
Give up on the idea of attaching FM calipers and get some PM calipers instead.
Originally Posted by
DrIsotope
There is currently no way to put a flat mount caliper on a post or IS mount trame.
Here's some flat mount to post mount adapters.
https://www.assolutions.ca/product-category/adapters/
It might be possible to attach the FM to PM adapter onto a PM to IS adapter but it would probably mean a increase of rotor size.
I doubt those FM to PM adapters would fit on a F160/R140 PM to IS adapter, they mightn't even fit on a F180/R160 PM to IS adapter.