CeramicSpeed 61903 Coated Bearing - (6903) Coated Bearing Race MPFN-00.4315.032.250 }Teravail Standard Tube - 700

}Teravail Standard Tube - 700 x 20 - 28mm 80mm Presta Valve

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Tracked and grooved upper guide and backplate increases stiffness

CeramicSpeed 61903 Coated Bearing - (6903) Coated Bearing Race MPFN-00.4315.032.250 }Teravail Standard Tube - 700CeramicSpeed 61903 Coated Bearing (6903) Coated Bearing Race. CeramicSpeed cartridge bearings with coated race are a premium upgrade option that provide extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. These bearings feature coated races that provide the ultimate performance and longevity. Grade 3 Silicon Nitride balls The coated bearing races increase the bearing service life by providing