so i have a eastern frame and i wanted to buy a new frame off of my friend so i checked to see if my spindle would fit in the frame but it was a little bit to big i think it was a 20mm, i was woundering if i end up buying a new spindle 19mm to fit the bb on the frame ima get would the crank arms that came with my frame that were on a 20mm spindle fit the new spindle 19mm or do i have to buy smaller crank arms tht will fit a 19mm spindle