Torque spec guidelines are as follows for your Norco Optic Aluminum:
2016 - 2019:
Shock Pivot Upper | 8 Nm | |
Shock Pivot Lower | 8 Nm | |
Linkarm Main Pivot | 10 Nm | |
BB main pivot | 12 Nm | |
Linkarm Seatstay Pivot | 10 Nm | |
Dropout Pivot | 8 Nm | |
Linkarm Centre Bridge | 8 Nm | |
Hanger screw | 1-2 Nm | |
Chainstay cable guides | 1-2 Nm |