CeramicSpeed Ceramic Wheel Kits - Zipp 4

Bearing drag is one of those losses that's easy to overlook and surprisingly costly to ignore. The CeramicSpeed Ceramic Wheel Kits - Zipp 4 is a six-bearing replacement kit designed for Zipp wheels running 88 front and 188 v9 rear hubs — giving you a complete upgrade in a single box. The Grade 3 Silicon Nitride ceramic balls are installed into hardened steel races in dust-free clean rooms, with CeramicSpeed's own low-friction grease included from the factory.

The numbers behind the balls are worth knowing: compared to standard steel, they're tested at 400% smoother, 128% harder, and 58% lighter. Against standard ceramic balls, they still outperform — over 100% smoother and 15% harder. The practical result is bearing life rated at three to five times longer than standard alongside measurably lower rolling resistance. The kit includes two bearings for the front hub, two for the rear hub, and two for the cassette body, plus seals, grease, and a grease syringe for installation.

CeramicSpeed Ceramic Wheel Kits - Specs at a Glance

• Compatible with Zipp 88 front and 188 v9 rear hubs
• Six bearings per kit — front hub (x2), rear hub (x2), cassette body (x2)
• Grade 3 Silicon Nitride ceramic balls in hardened steel races
• Assembled in dust-free clean rooms with CeramicSpeed proprietary grease
• Includes seals, grease, grease syringe, and sticker sheet