The Wave 6Headset helps you get your stem almost flush with your headtube thanks to the low-stack 6mm topcap. For those wanting a super clean, minimalistic look, the Wave 6 is one of the lowest stack headset caps on the market. Specs Material6061-T6 alloy cnc machined, high-end sealed bearings Colorblack, silver polished, satin oil slick Featureslow-stack 6mm cap, supplied with two 3mm spacers, variable stack heights between 6-12mm possible. Weight65g (2.3oz) (includes everything) The Wave 16 Headset is simplicity at it’s finest. Including a mid-stack 16mm topcap and x2 3mm spacers, this sleek looking headset allows you to dial in your front end with no fuss. Material6061-T6 alloy cnc machined, high-end sealed bearings Colorblack, gold, silver polished, satin oilslick Featuresmid-stack 16mm cap, supplied with two 3mm spacers, variable stack heights between 16-22mm possible. Weight65g (2.3oz) (includes everything)