OSPW for Shimano 9100/9150 and 8000 SS/8050 SS
OSPW for Shimano 9100/9150 and 8000 SS/8050 SS
The CeramicSpeed Oversized Pulley Wheel (OSPW) system is a premier mechanical upgrade for serious road cyclists and triathletes. By replacing the standard derailleur cage with a custom carbon-fiber-reinforced cage and larger 13-tooth (upper) and 19-tooth (lower) pulley wheels, it significantly reduces chain articulation and friction. This specific model features an updated design with an integrated stop tower for easier installation. Proven to save a minimum of 2.4 watts over stock Shimano setups, it is the choice of professional WorldTour teams. The system is engineered to provide a service life 3–5 times longer than standard pulleys, ensuring that your bike remains fast and reliable through thousands of miles of racing and training.
Key Features
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Industry-Leading Efficiency: Provides total power savings of 30%-60% over a stock pulley setup, translating to an immediate performance boost.
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Oversized Pulley Design: The 13T/19T combination reduces the angle of chain links as they pass through the derailleur, minimizing energy loss.
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Handbuilt Ceramic Bearings: Equipped with high-grade CeramicSpeed balls that are harder, smoother, and more durable than traditional steel bearings.
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Carbon-Reinforced Cage: Constructed from polyamide-reinforced carbon fibers for the perfect blend of lightweight performance and structural stiffness.
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Stop Tower Integration: The latest version includes a built-in stop tower to simplify the mounting process on 9100/8000 series derailleurs.
Specifications
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Compatibility: Shimano Dura-Ace 9100/9150 and Ultegra 8000 SS/8050 SS (Short Cage only).
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Max Cassette Size: Compatible with cassettes up to 32 teeth.
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Cage Material: Polyamide-reinforced carbon fiber.
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Pulley Material: Lightweight Aluminum.
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Speed Compatibility: 11-Speed.
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Constraint: NOT compatible with GS (Medium Cage) or RX800/805 (Clutch) derailleurs.
Typical Components Included
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Complete 13-tooth/19-tooth OSPW System (Cage and Pulleys).
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CeramicSpeed Bearing Oil (15ml dropper bottle).
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Integrated stop tower for mounting.
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Official CeramicSpeed sticker sheet.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
