Does anyone know what the benefit of larger crank web diameter is.
Is it just reduction in likelihood of twisting because there is more web on the perimeter beyond the crank pin/
Or does it affect the rotating mass characteristics too?
Also what are the benefits of a heavier crank over a lighter one?
Reason I ask is for a small frame. I can either run a Fabbri Crank - web diameter 83mm and weight 1.6kgs or a Malossi one - web diameter 85mm and weight 1.4kgs.