Just discovered this very useful site, now for my 1st question.
I have a nice carbon bike with ultegra 6800 11 speed (11-32 cassette) I wish to use this bike on an indoor trainer (on Zwift) but wish to minimise wear. I planned to get a spare rear wheel (Shimano RS010) 11 speed hub and fit a trainer tyre. To save money I would fit a 105 5800 (11 speed) cassette on the RS010.
Obviously then just change rear wheel depending on road or trainer.
Ques: Do I need to stay with a 11-32 cassette or will I degrade gear changes by fitting maybe a 11-28 ?
Will I degrade gear changes by using the 105 cassette in place of the ultegra one ?
There is minimal wear on the existing components so mixing new & used hopefully will be ok ?
Advice and your thoughts appreciated.