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@Cheesecake_intl
Bb30 is possible, with one of these bottom brackets;
http://www.wiggle.co.uk/ethirteen-bb30-bottom-bracket/?lang=en&curr=GBP&dest=1&utm_source=pla&utm_medium=base&utm_campaign=uk&kpid=5360582498
But, it's probably easier if you tell us what cranks you have and what frame you are trying to fit them to.