Zipp Cognition V2 Freehub Body Choose:Shimano HG With its reliable button-controlled interface

With its reliable button-controlled interface and robust battery

Resistant to water "wash off"

but expensive crashes are worse

IAV Cycling Dynamics: yes

we've engineered the DUB spindle to be the one true unifying component

Zipp Cognition V2 Freehub Body Choose:Shimano HG With its reliable button-controlled interfaceThe hub is centered on Zipp's Axial Clutch mechanism, which features two Metal Injection Molding (MIM) ratcheting rings one mated to the freehub body and one mated to the hub body. The two rings are machined like a ratchet, so they ramp off of each other while freewheeling but engage each other during pedal input. Compared to a standard pawl design, which actually resembles a drum brake, the Axial Clutch's MIM rings engage laterally to reduce friction