- 100 day return period
- Online since 1998
- Trusted Shop 4.84 / 5.00
Designed for 1" upper and lower head tubes combined with standard 1" fork steerer tubes.
Upper Cup: 1"
Lower Cup: 1"
Steerer Tube: 1"
Design: standard Ahead (EC)
Upper Cup Material: aluminium
Lower Cup Material: aluminium
Upper Insert Depth: 9 mm
Lower Insert Depth: 9 mm
Upper Cup Press Diameter: 30 mm
Lower Cup Press Diameter: 30 mm
Standardized Headset Identification System (S.H.I.S.):
The Standardized Headset Identification System (S.H.I.S.) creates a common language for describing modern bicycle headsets. The system provides comprehensive and scalable headset fitment information in a standardized format; making it easy to communicate headset requirements based on frame and fork interfaces. The system addresses the critical interface dimensions required to fit a fork to a frame, as well as bearing location / cup type. To determine fit, four dimensions are needed: (1) stem-clamp diameter of fork, (2) crown-race seat diameter of fork, (3) head-tube top inside diameter, and (4) head-tube bottom inside diameter. Bearing location and cup-type are identified as (a) external cup (EC), (b) semi-integrated or zero stack (ZS), or (c) integrated (IS).
EC: Bearings contained within cups that are located outside of the frame (external cup).
ZS: Bearings contained within pressed-in cups where the cup and bearings rest inside the frame (zero stack).
IS: Bearings that fit directly into a bonded or machined interface that is integrated into the frame (integrated).
EC30/25.4 - EC30/26:
- Design: standard Ahead (EC)
- Steerer Tube: 25.4 mm
- Steerer Tube Crown Race: 26 mm
- Head Tube (Frame Inner Diameter): 30 mm
- Stack: 36.5 mm
Manufacturer Part Number:
- 1 x Campagnolo upper bearing cup incl. stainless steel bearings
- 1 x Campagnolo lower bearing cup incl. stainless steel bearings
- 2 x Campagnolo nuts
- 1 x crown race
- 1 x circlip
- silver/EC30/25.4 - EC30/26: 104 g