OSPW for Shimano 9000/6800

The CeramicSpeed OSPW system for the Shimano 9000/6800 series is a precision-engineered drivetrain upgrade designed for competitive road cycling and triathlon. By utilizing two massive 17-tooth pulley wheels, this system reduces the chain's articulation angle, which directly lowers friction and saves energy. The cage is constructed from a high-quality polyamide-carbon blend, ensuring it is stiff enough for crisp shifting while remaining incredibly light. It is one of the most popular mechanical upgrades for legacy Shimano groupsets, offering a measurable performance advantage that can save between 2.4 to 4 watts over a standard factory setup.

Key Features

• 17-Tooth Pulley Setup: Unlike newer generations that use mixed sizes, this system uses twin 17T pulleys to provide a massive reduction in chain drag and friction.

• Extreme Efficiency: Delivers an overall power saving of 30%-60% compared to a stock Shimano setup, making it one of the most effective ways to buy "free speed."

• Advanced Material Build: The pulleys are crafted from lightweight aluminum, while the cage is a carbon-fiber-reinforced polyamide for maximum stiffness and durability.

• Handbuilt Ceramic Bearings: Features CeramicSpeed’s signature hybrid ceramic bearings, which are significantly harder and smoother than steel alternatives.

• Exceptional Longevity: The ceramic bearings and robust pulley materials offer a lifespan 3 to 5 times longer than standard industry parts.

Specifications

• Compatibility: Shimano Dura-Ace 9000/9070/7900/7970 and Ultegra 6800/6870/6700/6770 (Mechanical and Di2).

• Speed Compatibility: 10-Speed and 11-Speed.

• Max Cassette Size: Supports up to a 28T cassette (on most bikes, depending on the derailleur hanger).

• Bearing Options: Standard Ceramic or Coated Ceramic.

• Note: This system is NOT compatible with the newer Shimano 9100/8000 series or 12-speed 9200/8100 series.

Typical Components Included

• Complete 17-tooth/17-tooth OSPW System (Cage and Pulleys).

• CeramicSpeed Bearing Oil (15ml dropper bottle).

• User manual and installation guide.

• CeramicSpeed sticker sheet.