In most cases you can simply look at the top cover of the headset, all Cane Creek headsets are clearly identified with a model name in this area. OEM headsets may not have a model name or much information at all. In this case you may need to remove certain parts to measure your head tube in order to identify what you have. All Cane Creek models as of 2011 have Standardized Headset Identification System (SHIS) nomenclature marked on the cup for quick identification.