CeramicSpeed OSPW for Shimano

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Fits Shimano 9000/6700 Series

Because no one wants less speed. Seriously we live and die by this moto here at Glory and this is a classic example. Ceramic speed oversize coated derailleur wheels with ceramic bearings lessen rolling resisatance to such a degree you will feel it while you ride. 

Bigger proven to be better – 60 % energy savings The upgrades you make on your bike are extremely important when it comes to saving energy when riding. The CeramicSpeed 17-tooth OSPW System reduces friction in the pulleys by 60 %, or more in some cases, compared to the most commonly used high-end 11s stock pulleys. This unique system has been developed under close collaboration with a number of World Tour teams and several world-class triathletes. A rigorous on the road prototype testing program of over 10,000 km has been complemented and supported by the work of American independent test lab, Friction Facts. Thanks to the size of the pulleys and the cage system, your watt savings start at 2.4 watts. Fully fitted with CeramicSpeed Bearings, the OSPW System delivers the lowest friction and lasts between 3-5 times longer than other commonly used pulley wheels on the market.

  • For Shimano 9000/6700 Series
  • Only compatible with Ultegra 6700/6770/6800/6870 mechanical and Di2 rear derailleurs and Dura Ace 7900/7970/9000/9070 mechanical and Di2 rear derailleurs (up to 28t cassettes)
  • Not compatible with Shimano Dura-Ace 9100/9150 and Ultegra 8000 series rear derailleurs


  • Pulley Material: Aluminum
  • Cage Material: Carbon Fiber and reinforced PA
  • Rear derailleur: Shimano 10/11-Speed
  • This product comes with a 6 year warranty from CeramicSpeed
  • Package contains Coated Oversized Pulley Wheel System , oil and sticker sheet
  • Handmade in Denmark, CeramicSpeed bearings outperform anything else on the market
  • Weight: 55.4g

What is Coated?

CeramicSpeed coated products have a 6 years warranty. The unique coating formula is a metallic layer that covers the bearing races and makes them 75% harder than steel. Thanks to this, they are highly resistant to corrosion and the coating provides an even lower friction than our standard bearings. Even if the bearing is contaminated with degreaser, water or mud, the risk of bearing failure due to corrosion is negligible if you choose the coated version.