black silver
Hutchinson Innertube 700x25-30mm road bike inner tube
700x25-30, 48-60 or 80mm valve
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CeramicSpeed 61903 (6903) Coated bearing - 30x17x7
Ceramic bearing with Coated coating 7 times more durable
Notre avis
Nicolas B.
Technical expert
Discover the exceptional performance of CeramicSpeed "Coated" wheel hub bearings. They reduce friction by nearly 75% compared to standard ceramic bearings and have a 7.5 times longer service life. These benefits are due to the combination of high-end ceramic balls and bearing rings with a harder and smoother metal coating. These high-performance bearings can be used on road, track or mountain bikes.
To ensure that these bearings are compatible with your wheels, remove the bearings installed in your hubs and measure the various dimensions with a calliper.
To ensure that these bearings are compatible with your wheels, remove the bearings installed in your hubs and measure the various dimensions with a calliper.
TECHNICAL SPECIFICATIONS:
- Inner diameter: 17 mm
- Outer diameter: 30 mm
- Width: 7 mm
- Grade 3 silicon nitride balls
- Hardened steel bearing rings with metal coating and ultra-smooth polished groove
- Reinforced polyamide cage
- Non-contact seals that are water and dirt resistant
- Special blue ceramic grease
- Lifetime warranty
- Manufactured and optimised in Denmark
- Brand: CeramicSpeed
CeramicSpeed will replace any defective Coated cage or bearing under the lifetime warranty.
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