Beginners Polo

This is press-fit, a weak method for making parts. Also you can never change your chainring, and you will undoubtedly change your mind about gearing, polo bike or otherwise. Also this is weirdly expensive, probably because they put the word 'polo' on it.

You can use any 96 or 110 BCD chainring, those are the two MTB standard sizes. Just take of the other chainrings. Did you go to 56A yet? I'm sure there's a 110 BCD crank there.

Any mtb cranks I've had, have been 104 and 64 fyi