ive been having a hard time getting a stock crank into my new allballs main bearings. there the right bearinigs so i dont unnderstand. ive noticed that its not the bearings because on the crank you can see that theres a small thin "line" going around the perimeter of the crank and it wont go past the line without using force with a crankshaft puller. i tried filing it down but i decided to stop becasue i noticed that the connecting rod is slightly bent so im gonna buy a vitos complete crank assembly for 150 rather than 160 to rebuild the existing crank. im not really worried about it but im curios to knwo how the crank got that line