I got a smart trainer yesterday, supposedly to keep in shape. We'll see. It came with mid 2000's Mavic Cosmic for use and a new green training tire. It's got a Shimano freehub. It also came with a thru axle adapter. I have some options. I'll be hooking it up to Zwift, hopefully for a simple 45 minute high intensity set 5ish days a week.

I have two bikes I could use.

- Richey Swiss Cross V2. I have an unused thru axle wheel and unused 11-36 cassette for it. This would give me a training ratio of 38x11-36 (bike normally sports 10-42), is this adequate? Do you even shift on a trainer? I would be happy to consider the wheel and cassette disposable.

- My beautiful Tallerico. 10 speed Campy. I have a "spare" set of wheels with Campy hubs and Open Pro's, with a Miche (cheap, disposable) cassette. I do occasionally use this wheel though, so I'd either have to use the trainer on the current tire or swap tires when I do want to use it.

Aside from buying a new cassette body or a special Shimano to Campy cassette from IRD for $150, I don't think I can use the Cosmic. I'm ok with that.

I could see either way working.

I guess my final question is about frames. While both are steel, one is rather robust and welded and the other is more artisanal and filleted. Both are quite strong and probably not a real concern. I don't know though.

Thoughts?