Thank you for the support, but more important than the story behind is the design.
It is a waste for a bi-metal to be heavy, normal throws are more than enough, the extra power is not really needed.
But in the low weights, a bi-metal shines, it does what a single metal one can´t, be light, and keep mad torque, but I didn´t want to do yet another bi metal, so I pushed more than half weight into the rims,
the rings weight is more than 50% of the body weight (aluminum 20g and steel 10.1 per halve).
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