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CeramicSpeed Hub Kits

  • $619.99
  • Regular price $619.99

- Premium ceramic replacement bearings for Bontrager Aeolus D3 hubs
- CeramicSpeed bearings reduce friction and improve performance & durability
- 400% smoother, 128% harder, and 58% lighter than a standard steel bearing
- Coated options use a 75% harder bearing race, further reducing friction and wear
- Made from Grade 3 Silicon Nitrate - the highest possible grade
- Handmade in Denmark and used by numerous pro teams including Trek Factory Racing