I'd like to get a direct train bike trainer (wahoo kickr) to exercise on. My current road bike is a Schwinn le Tour circa 1980, and does not have the 10 or 11 speed required to run on most direct train bike trainers. Would it be most cost effective to buy a new gear setup for this old bike (if it's even possible), or just to find a 10 speed on Craigslist? Thank you in advance ;)

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The trainer has a standard Shimano freehub body. It is not advertised, but it is entirely possible to install a 7-speed cassette and use spacers to compensate for the cassette width difference. For even lower number of cogs, you use cogs from a cassette and install the cogs with extra spacers to match the spacing on your current cassette or freewheel.

The other problem is axle width. Modern road bikes have 130mm real axle, and older ones 126mm. You have to either spread your frame a bit or ask Wahoo if the axle width can be adjusted.

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