Originally Posted by
msu2001la
For what it's worth - ETRTO guidelines now say 23mm is the max inner rim width that should be used for 28mm tires. On 25mm you'd need 29mm tire as a minimum (which in reality means a 30mm tire since I don't think anyone is making 29mm).
https://www.cyclingnews.com/features...t-your-safety/
That may be true, but many brands allow the use of their 28mm tires on 25mm IW hookless rims. I have Michelins 28mm on two bikes with 25mm IW hookless rims. No problems.
https://www.sram.com/en/zipp/campaig...-compatibility