You need a longer BB . Took out the one you have now and add 5 - 10 MM to it so the chainrings will clear the frame and keep a eye on the chainline . As long as the chain is straight from the middle of the chainrings to the middle cog of the cassette or freewheel (which ever you have ) If it odd number then 3 or 5 cog if it even the between two cogs like 4 & 5 .