Cane Creek 40 EC34/28.6 / EC34/30 Threadless Headset

Cups and Covers: 6061 T-6 Aluminum Crown Race: Durable steel crown race with low-friction face seals Compression Ring: Aluminum captured compression ring Interlok®: Interlok® spacer compatible Compatibility: Internal parts are cross-compatible across the 10, 40 and 110 series Stack Heights: Consistent top and bottom stack heights  External Cup (EC) – 16mm Top, 12mm Bottom Headset Configuration: Complete SHIS: EC34/28.6 | EC34/30 Top Type: External Cup Top Head Tube Inside Diameter: 33.95mm Stem Clamp Diameter: 28.6mm Top Stack Height: 16mm Bottom Type: External Cup Bottom Head Tube Inside Diameter: 33.95mm Crown Race Seat Diameter: 30.015mm Crown Race Type: Steel, Face-Sealed Bottom Stack Height: 12mm Material: AL-6061 Bearing Type: Black Oxide, Sealed Color: Black Part Number: BAA0068K Published Weight: 98g The 40-Series sets the standard for performance, durability and value. Drawing from the Premium 110-Series Design, the 40-Series incorporates all the features necessary for a