Difference in flywheel weights 71-85?

Thanks in advance.

 

Here you go

http://www.mazdatrix.com/faq/flywheel.htm

 

82 is the lightest. I run one on my stock 80 12A. I can really feel the difference
and it was cheaper than buying a fancy light weight fly wheel. Sometimes hard
to find because its an old racers trick to make the flywheel lighter and stay
within the rules for some classes.

 

The flywheels are weighted to match/complement the rotating assembly (rotors and e-shaft). Using the wrong flywheel will cause engine/bearing wear.