CeramicSpeed Bearing 61903 Standard Brown/White offering wider gearing

offering wider gearing

From riding local loops to heading out for a multi-day bikepacking trip

First launched exactly two decades ago

with the front compartment closure doubling as a securing strap for a lock for any urban excursions

30-40 psi (700c)

CeramicSpeed Bearing 61903 Standard Brown/White offering wider gearingEngineered for unparalleled low friction and exceptional durability, optimizing power transfer and efficiency in high performance cycling components. The CeramicSpeed Bearing 61903 Standard is a precision engineered ceramic bearing designed to provide a significant upgrade in performance and longevity for your bicycle's rotating parts. Featuring high quality CeramicSpeed balls and robust steel races, this bearing dramatically reduces friction compared