On the original Key a number will be marked on the fob between N001 To N200 or N001R To N200R or 001 To 200.
LockDoctor.biz Replacement Keys for Halfords Roof Boxes, Cycle Racks & Ski Bars | (Range N201-N250) | Key Number Required
Replacement key for Thule carrier systems and roof boxes. Key number Thule - N012
SCHLUESSELBUDE.DE SB Replacement Key for Thule Carrier Systems & Roof Boxes - Key Number Thule N105 - Compatible with Car, Van & Bicycle
Replacement key for Thule carrier systems and roof boxes. Key number Thule - N178
Replacement key for Thule carrier systems and roof boxes. Key number Thule - N121
Replacement key for Thule carrier systems and roof boxes. Key number Thule - N109