The Hope Pick N Mix Bottom Cup gives you the option to create the perfect headset for your bike.1. You need accurate dimensions if you are at all unsure of what type you need.2. unfortunately there is no standard - OK, we have the dimension 1 1/8 inch, which covers the majority of headsets now, but as far as Integral, integrated etc... these are simply terms used by different manufacturers to determine what they consider that style to be. Measure, check and measure again!The traditional Hope headset is made to fit standard frames and 1 1/8 inch fork steerers. They include custom made stainless steel bearings (which are replaceable). The cups, taper ring and crown race (which is split for easy installation and removal) are all machined from 2014 T6 aluminium.The integral Hope headset is made to fit low stack 1 1/8 inch frames (please check drawings for exact sizing). They include custom made stainless steel bearings (which are replaceable). The cups, taper ring and crown race (which is