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Warning: California Proposition 65
Ceramic Bearing Upgrade Kit boosts hub efficiency with ultra-smooth CeramicSpeed internals
What Our Gearhead® Experts Are Saying:
"This upgrade took my wheels to another level. Smoother rolling, noticeably better power transfer, and you can feel the reduced drag on long rides. Installation was a breeze, and knowing they’re hand-built just adds confidence to the quality."
We demand every watt counts—on the flats, in the break, or grinding up alpine grades. That’s why we trust the Zipp Ceramic Bearing Upgrade Kit, featuring CeramicSpeed’s industry-leading grade 3 Silicon Nitride balls. Hand-built in Denmark and matched to polished steel raceways with micrometer precision, these bearings offer a near-frictionless spin that maximizes speed and durability.
Whether we’re building out a race-ready setup or fine-tuning our daily driver, the non-contact sealed design keeps contaminants out while CeramicSpeed’s Blue Grease keeps performance smooth and consistent. The payoff? Reduced rolling resistance, improved power transfer, and longer service life—across every road discipline we ride.
Details
- Includes two 61803 CeramicSpeed bearings for hub performance upgrades
- Compatible with Zipp 76/77 front hubs, Cognition Gen 2 rim hubs, ZR1, ZM2, and Cognition driver bodies
- Grade 3 Silicon Nitride ceramic balls are 400% smoother and 58% lighter than steel
- Polished steel raceways reduce friction and extend bearing life
- Low-viscosity CeramicSpeed Blue Grease enhances speed and durability
- Non-contact seals keep out water and trail grime for reliable year-round use
- Hand-built in Denmark and checked four times for precision matching
- Improves power transfer and rolling efficiency across all cycling disciplines
- Item #ZIPZ06T
- Claimed Weight
- 8g
- Compatible Components
- 76/77 front rim brake hubs, Cognition rim brake front hubs (Generation 2*), ZR1 driver bodies, ZM2 driver bodies, Cognition driver bodies
- Includes
- 2 61803 ceramic bearings
- Activity
- road cycling
Cancer and Reproductive Harm - P65Warnings.ca.gov