OSPW Aero for Shimano 9100/9150 and 8000 SS/8050 SS
This is an updated version of the Oversized Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS. Mounting instructions for both this and the older version are to be found under our Support section.
This new design has an integrated stop tower for easier mounting.
The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems.
The OSPW system for Shimano 9100/9150 and 8000 SS/8050 SS is an industry leading product, chosen by many of the world's leading cycling teams and professional triathletes.
Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings.
Please note: The OSPW 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. Please see our OSPW X for Shimano RX800/805 for a compatible RX800 & RX805 version. For a compatible upgrade for Ultegra 8000-GS or 8050-GS please see our Pulley Wheels for Shimano, 11s NW.
Please note while there is design similarities this OSPW is not compatible with the 12-speed Shimano 9200 or 8100 series derailleurs.
The Shimano 9100/8000 OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailluers
In The Box
- Complete 13-tooth/19-tooth OSPW System
- CeramicSpeed Oil for Pulley Wheel Bearings, 15ml. dropper bottle
Codeveloped with Simon Smart and Drag2Zero.
Cage Material: Carbon reinforced PA
Pulley Material: Aluminum
Pulley Size: 13/19
Bearing options CeramicSpeed: Coated bearings
CeramicSpeed Grease/Oil Pulley Oil (standard)
Compatibility: Shimano Dura Ace 9100, 9150, Ultegra 8000 SS, 8050 SS
Spring Tension Settings: 4 settings
Speed: 11 speed
Discipline: Road/TT/ TRI
How to save watts
Maximise your performance when riding
Your choice, your advantage
One hidden force affects your speed and efficiency on the bike – friction. That’s why, when you’re optimising your bike, it’s worth focusing on every detail, especially the small moving parts that are affected by friction.
CeramicSpeed technology focuses on reducing friction and producing bearings with an unmatched lifetime, meaning that you get to ride faster or save energy. With CeramicSpeed products in your hubs, pulley wheels and bottom bracket, tests show that you’ll save between 6–9 watts, compared to using standard bearings. Those savings increase further with the use of a CeramicSpeed UFO Racing Chain. This will save between 2–5 watts, taking your competitive advantage up to 14 watts.
Upgrading your rear derailleur to the CeramicSpeed Oversized Pulley Wheel System completes the optimisation equation. Thanks to the unique design and componentry, the oversized pulley wheels reduce friction in the derailleur by 40–60% when compared to the high-end pulley wheels usually used in the cycling industry. By reducing friction with every opportunity, the CeramicSpeed technology can round up the watt savings between 10 and 16 watts.
We are not talking about saved seconds but saved minutes
CeramicSpeed products help you ride faster using less energy. This can be the difference between winning and losing. Whether you ride for pleasure or you are a pro athlete fighting the clock, you will always benefit from riding with CeramicSpeed bearing products and chains, as well as using the fastest bottled product for chains, UFO Drip. Take advantage whether you are riding road, off-road or triathlon.
Save 10-16 watts using Hub Bearings, Bottom Bracket, an OSPW System and UFO Chain. Alternatively, upgrade your bike with a standard CeramicSpeed Bearing upgrade (includes Hub Bearings, Bottom Bracket and 11-tooth Pulley Wheels and results in 6-9 watts energy savings), or add the CeramicSpeed UFO Chain to the standard upgrade and save a total of 8-14 watts.