Description
When it’s time to refresh your trusty wheelset, Trek Genuine Replacement Parts have you covered.
Premium ceramic replacement bearings for Bontrager Aeolus XXX & Aeolus D3 wheels Only compatible with Bontrager rim-brake wheels with DT-Swiss internals CeramicSpeed bearings reduce friction and improve performance & durability 400% smoother, 128% harder, and 58% lighter than a standard steel bearing Made from Grade 3 Silicon Nitrate – the highest possible grade 75% harder bearing race, further reducing friction and wear
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