If you're not particularly heavy (given your height I'd assume you're not) and you're not going to be descending mountains, go 140 front and rear.
I'd agree. I've run 140 mm front and rear with Spyres, and they stop pretty well for cable discs.
@andyp started
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If you're not particularly heavy (given your height I'd assume you're not) and you're not going to be descending mountains, go 140 front and rear.