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CeramicSpeed 61903 (6903) Bearing #101274

CeramicSpeed 61903 (6903) Bearing #101274

Ultra-low friction ceramic bearing engineered to unlock maximum drivetrain efficiency.

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(outside Hong Kong) free shipping on orders over USD$300 on selected categories

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Description

When marginal gains matter, the CeramicSpeed 61903 (6903) bearing delivers a performance upgrade you can actually feel. Hand-built in Denmark, this high-precision bearing pairs ultra-smooth Grade 3 Silicon Nitride ceramic balls with hardened steel raceways, drastically reducing rolling resistance compared to standard steel bearings.

 

Every detail is engineered for efficiency and longevity. Pre-packed with low-viscosity CeramicSpeed Blue Grease and protected by non-contact seals, it maintains optimal performance across road, gravel, and MTB applications. Whether you're chasing watts, smoother rotation, or long-term durability, this bearing is designed to elevate your entire drivetrain system.

 

For riders who demand the best, the optional Coated version further enhances corrosion resistance and reduces friction even under extreme conditions — a true no-compromise upgrade.

 

FEATURES

・ Grade 3 Silicon Nitride ceramic balls for ultra-smooth rotation

・ Hand-built and precision-matched for minimal friction and maximum durability

・ Non-contact seals with low-viscosity grease for optimal efficiency

 

PRODUCT POSITIONING

・ High-performance drivetrain upgrade bearing

 

TARGET AUDIENCE

・ Riders seeking maximum efficiency and reduced drivetrain friction

・ Performance-focused cyclists upgrading wheel hubs, bottom brackets, or pulleys

・ Competitive riders chasing marginal gains

 

SPECIFICATIONS:

Model: 61903 (6903)

SKU: 101274

Inner Diameter: 17 mm

Outer Diameter: 30 mm

Width: 7 mm

Weight: 13.85 g

Bearing Type: Ceramic (Silicon Nitride balls + steel races)

Finish Options: Standard / Coated

Seal Type: Non-contact seals

Grease: CeramicSpeed Blue Grease

Shipping & Payment

Delivery Options

  • SF Express (Commercial and residential address)
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  • Pickup at store (Hong Kong)
  • International Shipping (Taiwan)
  • International Shipping

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