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CeramicSpeed

CeramicSpeed OSPW RS derailleur cage for Shimano 9250/8150, black

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489 € - 519 €
RRP 559 €
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CeramicSpeed OSPW RS derailleur cage for Shimano 9250/8150

The OSPW system optimizes the overall efficiency of your drivetrain thanks to its unique design and extremely low-friction bearings.



The OSPW system from Ceramicspeed is arguably the best way to optimize performance. The large 13-tooth upper and 19-tooth lower pulley wheels significantly minimize chain link movement as it passes through the cage, thereby significantly reducing friction and effort. Furthermore, the lifespan is significantly extended compared to other commercially available systems.



The pulley wheels are also made of aluminum. These represent an absolutely top-tier solution for all riders who want to get the maximum out of themselves and their equipment in races, and for whom every saved watt is more important than anything else. The pulley wheels, and especially their bearings, must compensate for high friction, which is why they benefit from a durable, low-friction bearing. Ceramicspeed SpeedBalls are 15% harder than competing ones and can absorb significantly more force. They also have an incredibly smooth surface, thereby reducing rolling resistance to a minimum.
Product features
The 13 and 19-tooth pulley significantly minimizes chain movement when passing through the cage
SpeedBalls bearings with a smooth surface significantly reduce rolling resistance almost
Product details
Groupset Dura Ace RD-9250 and Ultegra RD-8150
Material cage: carbon/polyamide, pulleys: composite/aluminium, bearings: ceramic/stainless steel
Pulleys upper: 13T, lower: 19T
Maximum cassette sprocket size 36T
Weight 85 g
Colour black
product ID 321131
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bl8ckb8ger bl8ckb8ger • 8 July 2025 at 7:46
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8 July 2025 at 7:46
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CeramicSpeed
Accessories CeramicSpeed
CeramicSpeed is a Danish brand that specializes in high-performance ceramic bearings and drive components for various industries including cycling, automotive and industrial applications. The brand is known for its innovative and cutting-edge technology, offering products that aim to improve the efficiency, durability, and overall performance of mechanical systems. CeramicSpeed was founded in 2004 by Jacob Csizmadia, a mechanical engineer with a passion for cycling. Frustrated by the limited options for high-quality bearings in the cycling industry, Csizmadia decided to develop a superior solution. He began experimenting with ceramic materials, which are known for their low friction and high wear resistance. After years of research and development, CeramicSpeed was born.
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