Cane Creek's 10 Series has light, tough, and beautiful machined 6061 T6-aluminum cups, Cane Creek's corrosion-resistant black-oxide angular-contact bearings and quality seals throughout to keep the grease in and the dirt out. • Technical Description: EC34/28.6/H16/K|EC34/30 /H12/K • Top Type: EC - External Cup • Top Head Tube Inside Dia.: 33.95mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 16mm • Top Bearing Type: Black Oxide • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 33.95mm • Crown Race Seat Dia.: 30.015mm • Crown Race Type: Polymer • Bottom Stack Height: 12mm • Bottom Bearing Type: Black Oxide • Material: 6061 aluminum • Weight: 88.29g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 40 Series has light, tough, and beautiful machined 6061 T6-aluminum cups that are internally relieved for even more gram shaving. You also get Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out, including Cane Creek's Clip Seal that completely seals the top assembly.

The Ritchey Scuzzy Logic Pro threadless headset is constructed of aluminum and uses replaceable cartridge bearings. • Bearing Type: Cartridge • Color: Black • Crown Race: 30 • Defined Color: Black • Lower Stack Height: 14 mm • S.H.I.S Lower: EC34 • S.H.I.S Upper: EC34 • S.H.I.S. Stem Clamp Diameter: 28.6 • Upper Stack Height: 18 mm • Weight: 130 g