Originally Posted by
veganbikes
That my friend is a freewheel not a cassette:
You could purchase a 7 speed cassette to work but I gotta wonder what kind of bike she is running? 7 speed freewheels are long out of date so it is either something cool and vintage or she could use something a little nicer not from Aisle 10 at WallyMart and you could get a cheaper trainer. Either way check and make sure the spacing will work on that as it is possible the bike could still be 126 spaced (not likely in 7 speed but you never know)
Thanks - it's a new Trek FX1 (3x7), so the spacing will work as it's 135mm. I'm trying to talk her into an upgrade, but she's new to riding and wants to stick with this one for a while until she has a better idea of what she wants in her next bike.
So there are still 7-speed cassettes out there that (along with the appropriate spacers) will allow her to use the FX with the Kickr? That's promising, thanks!