Need some advice choosing chainrings and cassette please.

[SafetyThird]

I didn’t realise shimano went up to 34 in 10 speed and i was trying to use my current, brand new cassettes from Miche, as I have one on the wheel and one on the turbo. Seems a shame to get rid of them, but if the shimano works then that might be a better solution, thanks for the pointer.

 

[T4tomo]

I didn’t realise shimano went up to 34 in 10 speed and i was trying to use my current, brand new cassettes from Miche, as I have one on the wheel and one on the turbo. Seems a shame to get rid of them, but if the shimano works then that might be a better solution, thanks for the pointer.

now you've got an Altus long cage derailleur on the back then using an 11-34 (or 11-36) cassette will be no problem. keep the Miche ones for the turbo as you'll be doing less hills indoors so wont need to go beyond the 30T on the back.

 

[si_c]

I didn’t realise shimano went up to 34 in 10 speed and i was trying to use my current, brand new cassettes from Miche, as I have one on the wheel and one on the turbo. Seems a shame to get rid of them, but if the shimano works then that might be a better solution, thanks for the pointer.

If they are pretty much brand new you might be able to re-sell them on ebay.

 

[SafetyThird]

now you've got an Altus long cage derailleur on the back then using an 11-34 (or 11-36) cassette will be no problem. keep the Miche ones for the turbo as you'll be doing less hills indoors so wont need to go beyond the 30T on the back.

This sounds like a good option, though I was trying to keep the same cassette on the bike and the turbo to make the shifting equivalent.