I had read the study a number of years ago
a chain starts off with fantastic numbers at lower speeds and power levels
but the friction builds fast as power goes up
with a conventional motorcycle belt you start with crummy numbers
from the needed high pre tension
but it never really gets much worse even if you pour on the power
yeah that's why I prefer a microv belt, with as little as 10 pounds it becomes self locking
and it still has the self leveling friction curve but has far better power consumption at low power levels
this is what makes it a favorite with car designers
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