Originally Posted by dynaryder

Maybe. Check this chart to see how well those will fit on your rims:
Tire Dimensions | Schwalbe North America

Going from 2"+ to 42mm is a pretty big jump;if those wheels were intended for fat tires,you may have issues going that skinny. I mounted a set of 1.35" tires on some MTB rims once;they were so hard to mount I wondered if they were the right size. Def not something I'd want to deal with on the side of the road.



As the others have said,nope:
Tire Sizing Systems

"This is a marketing term for wide 622 mm ("700c") tires."