The Aheadset IS features an integrated race/compression ring with a simple O-ring to seal out contaminants and increase the headset's life expectancy.
- EC, EC-Threaded, IS and ZS headsets are individual models in the Aheadset systemsystem
- IS features Cane Creek semi-cartridge lower bearing and caged Aheadset system upper bearing
- Compression ring is integrated into the top cover creating one simple, light part
|S.H.I.S. Clamp Diameter||28.6|