Is a torque wrench required for installation?

  Yes, it is recommended to use a torque wrench during installation to ensure a secure fit.

  For the connecting screws between the spider and the cranks/chainring: please tighten them with a torque wrench;

  For the crank interface: please install it according to the torque range shown in the pic; (the pic is searching online and for reference only)

  For the chainring screws: the recommended torque is 12-16 N·m. (for the currently sold Velocity model; for other brands of chainrings, please consult the relevant manufacturer).