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CeramicSpeed Wheel Bearing Upgrade Kit: Zipp-9 (NSW Hubsets) BB9815

$714.00
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Product Description

An upgrade option for cartridge wheel bearings that offer extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.
  • Includes 4 X 61803 + 1 X 61903 + 1 X 61804 bearings
  • Fits NSW (NOT DISC) Before mid 2018 (1st gen)
  • Grade 3 Silicon Nitride balls
  • Hardened races
  • Reinforced polyamide cage and non-contact seals
  • Hand built in Denmark
  • High resistance to poor lubrication