CeramicSpeed Shimano OSPW Aero

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 compared to 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; Simon Smart and is chosen by World Champions and top athletes around the world.

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 optimisation of the rear derailleur and 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 9100 and 8000 has an integrated stop tower for easier mounting. This is an updated version of the Oversized Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS.

Features:

• Co-developed with Drag2Zero
• Refines aerodynamics by focusing on frontal area impact, as well as smoothing and controlling the trailing wind
• Reduces aerodynamic drag on the rear derailleur by up to 60%
• Reduces friction by 35 - 40% over stock pulley configuration
• Custom molded cage
• Features 13-tooth upper and 19-tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls
• Robust cage crafted from polyamide and carbon fiber for durability and light weight
• Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion

Specifications:

• Material: Aluminum
• Drive: 11-speed
• Largest Cog: 32 t
  • 9100/8000: 32 t
  • 9200/9250 and 8100/8150: 34 t
• Net weight: 97 g
• Gross Weight: 280 g

9100/8000 Compatibility:

• Dura Ace 9100 Mechanical
• Dura Ace 9150 Di2
• Ultegra 8000 SS Mechanical
• Ultegra 8050 SS Di2

9200/9250 and 8100/8150 Compatibility:

• Dura-Ace R9200 Series
• Ultegra 8100 Series

Included:

• Complete OSPW Aero for Shimano 9100 and 8000 system
• CeramicSpeed Oil for Pulley Wheel Bearings, 15 ml dropper bottle

Note: The OSPW Aero System for 9100/9150 and 8000 SS/8050 SS is NOT compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, nor with the clutch equipped Ultegra RD RX800 & RX805.

Maintenance Guide