I am relatively new to riding, like to work on my bike, and would like to spend more time riding outside while I still can. I have a wheel on trainer, and am looking for a spare rear wheel to use as a dedicated trainer wheel. That way I will easily be able to swap and ride outside without having to change my tire.
My bike is a specialized diverge a1, so I am looking for a 700c disc wheel (11 speed).
I, ignorantly, bought a 10 speed clincher wheel (my setup is disc) and it does not fit my bike. I am doing my best to learn from this mistake, so I have a few questions.
1st: does anyone have advice as to what size wheels will fit on my bike i.e. what measurements besides 700c do I have to pay attention to before purchasing the wheel.
2nd: does the wheel have to fit an 11 speed cassette to work on my bike (keep in mind I use erg mode and will never be shifting gears)
3rd: Are cassettes universal? Will Shimano cassettes fit on wheels from a different company?
I know these questions may seem super basic, but I am new to this and doing my best to learn. I know there are many people with mechanic skills on this forum, so any advice or links/references would be very useful!