- The 40-Series is the work-horse of Cane Creek's headset line-up and incorporates all the features necessary for a durable, light-weight and long-lasting headset while offering the perfect balance of performance, durability and value - Contoured and relieved 6061-T6 aluminum for minimized weight and maximized strength with split-lip sealed stainless steel bearings - Low friction, dual-seal crown race and top cover provides maximum sealing from contaminants, plus a captured compression ring design for carbon steerer compatibility (Interlok spacer compatible, sold separately) - Cane Creek Integrated 41.0mm ID (36x45), Campy Hiddenset 42.
