Zipp Cognition Freehub Body

Your rims are no joke, but you've been known to guffaw at your hubs that just don't engage like they used to. This shouldn't mean that you've got to upgrade the whole wheelset, instead, upgrade your hoops with a new Zipp Cognition Freehub Body, and bring your wheel into the future with unmatched stability and stiffness. The 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 while freewheeling, so coasting doesn't negate watts already spent. We're familiar with this model, as we've seen similar mechanisms on the designer hubs featured in top-end custom builds for years now, but Zipp is the first to replace the usual tensioning agent, steel springs, with magnets. This substitution further reduces friction between the ratcheting rings, making for what may be the smoothest freewheel on any mass-produced hub set. It's a design that we suspect will eventually be the norm, but -- once again -- Zipp is leading the charge.

• Replace your Zipp Cognition hubs' worn-out freehub body with this precision-engineered Zipp Cognition Rim Brake Freehub Kit, designed specifically for Road 11-speed systems.
• Crafted from lightweight yet durable aluminum, this freehub body offers enhanced performance and long-lasting reliability for serious road cyclists.
• Engineered for Gen 1 Cognition hubs with a two-piece axle system, this freehub kit ensures seamless compatibility and smooth engagement for improved power transfer.
• Optimized for HG 11/12-speed road cassettes, this freehub body provides quick, secure cassette installation and effortless drivetrain compatibility to enhance your cycling experience.
• Featuring innovative design tailored for Zipp Cognition hubs, this freehub kit combines style and high-performance technology, making it the perfect upgrade for competitive riders and enthusiasts seeking reliable, cycling components.