KOGEL 6903 Ceramic Bearing - Cross Seal

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Free Shipping on orders over $120 (excludes some large/oversized items) AUS only. 

$15 Flat rate Express Shipping option available for non-bulky items. Usually delivered the next business day (Metro Areas) AUS only.

Same Day Dispatch on orders before 2pm (excludes bikes).

Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.

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Kogel ceramic bearings are the perfect next upgrade for your bike. Your wheel bearings are always under load, and while stock steel bearings can be tough, they can still deform under load and even rust in poor conditions. The silicon nitride ceramic Kogel uses in their bearing balls is harder, smoother and rounder than any steel bearing ball could ever be. Their non-deforming properties reduce contact points with the bearing races and their high-smoothness and roundness reduces friction and wear.

Cross seals are built to have the best protection against the elements, and are recommended for off-roading, though they are best for any cyclist seeking longevity from their bearings.


  • Hybrid Ceramic: Steel rings and ceramic balls are the gold standard for bicycle wheel bearings
  • More durable than high-quality steel bearings
  • Top-tier grade 3 ceramic balls are the best selection for bicycle applications (Ball grade rates the roundness of the ball)
  • Hardened steel races polished to a mirror finish
  • Standard “cross” seals for optimal balance of durability and ceramic efficiency

Size: 17 x 30 x 7mm

All bearings sold individually

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