ACS Maindrive Headset EC34/28.6|EC34/30 Black ModelNumber=K8143 All carbon fiber is produced

All carbon fiber is produced by Toray and uses tailor-made Nano Epoxy Resin for very high impact resistance

Weight:  46t (Aero) • 115g  |  48t (Aero) • 125g  |  50t (Aero) • 135g  |  52t (Aero) • 141g

And finally the Century has a seamless synthetic Fibra-tek cover that reduces the incidence of high-cadence chafing

10mm or 20mm lengths

where winter weather hits its peak

ACS Maindrive Headset EC34/28.6|EC34/30 Black ModelNumber=K8143 All carbon fiber is producedMainDrive External Headsets utilize forged steel cups alloy tops and cap with sealed mechanism bearings. Color Black Bearing Type Cartridge Crown Race 30 Defined Color Black S. H. I. S Upper EC34 S. H. I. S. Stem Clamp Diameter 28. 6 Threadless S. H. I. S Lower EC34 Size EC34 28. 6 EC34 30