why does honda use different color rod bearings on the same crank? can someone please answer me this? honda is the only co. that does this.

 

the main reason that honda does this because if you can imagine the amount of crank that honda produces for one line of motors in that huge amount of cranks some of the cranks will differentiate in sizes and rather than scrap them all because journals are different dimensions why not make different bearing that can be inserted to even out the clearences aside from that they are also so beneficial to your engine builders out there allowing them to juggle clearences and loosen and tighten cranks for different applications..