Hey guys. I'm needing to replace a set of crank bearings for an older .21 on-road novarossi competition 2000 engine.

Do you guys know of a place that has these bearings? i dont need anything special..just high grade steel will be fine.

the front bearing measures-
19mm x 7mm x 6mm (.748'' x .275'' x .235'')

the rear bearing is-
25mm x 13mm x 6mm (.985'' x .512'' x .235'')

is this a typical, easy to find size?