I use my "good bike" on my rollers, same road bike I use for my main outdoor single. Main thing is to have the fit and saddle exactly the same. Rollers solves that right now. I like a wide range of gears on my resistance rollers, though not so wide that I have to use the granny ring on my triple. I use big/small and middle/big and everything in between. Different intervals need different gears since my rollers don't have a resistance control.
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