Okay, so I got a second wheelset for my mtb that will be used specifically for commuting. The wheels will have a good set of Continental slicks mounted. I also got an 8-speed 12-25t cassette for these wheels since they'll be strictly for road use. Considering the smaller cogs on this particular cassette, will I need to put on a tighter chain whenever I swap the wheelsets? I have zero experience and know absolutely nothing.