10 spd chain will work ok on 8/9/10 spd cranks and it is likely it would work on 5/6/7 speed cranks
although older chain wheels may not have the ramps, tooth shape and pins that so much improve shifting
in modern era CW. The inside measurement of chains has changed very little compared with the outside
width. CW separations on 5/6/7 speed are wider than 10spd like and 8spd is also a little wider than
9-10 spd cranks but chain catchers can assist here with compact systems.