To a point, mine would need different chain stays to go any thinner as the cranks are quite wide at the bottom compared to MTB ones, even on a 120 spaced frame you'd be struggling to lose more than a few mm.
@snottyotter started
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To a point, mine would need different chain stays to go any thinner as the cranks are quite wide at the bottom compared to MTB ones, even on a 120 spaced frame you'd be struggling to lose more than a few mm.