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OSPW Aero for Shimano 9250 and 8150
The world’s fastest Pulley Wheel system just got faster. OSPW Aero features a lifetime warranty and is wind tunnel tested to have 40% less friction than a stock derailleur, making it perfect for time trials or triathlons.
The OSPW Aero is an industry-leading product co-developed with one of the world’s leading aerodynamicists; World Champions and top athletes around the globe choose Simon Smart. This OSPW system has handbuilt CeramicSpeed Bearings installed, and its unique design and craftsmanship will captivate you from the first time you use it.
The system features a 13-tooth upper Pulley Wheel and a 19-tooth lower Pulley Wheel to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum Pulley Wheels come fitted with coated CeramicSpeed Bearings that have been perfected through years of experience.
The OSPW Aero for Shimano Dura Ace 9200 and Ultegra 8100 has an integrated stop tower for simple installation and durability.
Please note that while there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned, and the systems are not cross-compatible. The 12spd Shimano R-7150 105 is not supported at this time.
For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer.
Installation of OSPW Aero for Shimano 9250 and 8150
See chain length and tension guide here
See the mounting and maintenance manual here
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