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CeramicSpeed OSPW for Shimano 10/11 Spd RED - Shimano 10/11 Spd
CeramicSpeed OSPW for Shimano 10/11 Spd BLACK - Shimano 10/11 Spd
RED - Shimano 10/11 Spd
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CeramicSpeed OSPW for Shimano 10/11 Spd RED - Shimano 10/11 Spd
CeramicSpeed OSPW for Shimano 10/11 Spd BLACK - Shimano 10/11 Spd

OSPW for Shimano 10/11 Spd

Mfg PartNum:
  (1 customer reviews)
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Backorder: This item is currently not in stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

The cage unleashed.

CeramicSpeed's Oversized Pulley System frees up to 60% of the friction in your Shimano mechanical derailleur's pulley cage, leaving you with a savings of at least 2.4 watts. This incredibly smooth OSPW system was developed and handmade in Denmark using large 17T alloy pulley wheels that spin on ultra high-precision ceramic bearings. Every little bit counts when you're vying for the win, and CeramicSpeed makes sure nothing is left out on the road.


  • 17T alloy pulley wheels w/ ceramic bearings
  • Carbon-reinforced polyamide cage
  • Titanium mounting hardware
  • Handmade in Denmark
  • Efficiency claims verified by Friction Facts in Boulder, CO
  • 4 year warranty
  • Includes ceramic bearing oil
  • Claimed weight is approximately 70 g
  • Compatible with Ultegra/Dura Ace (6800/7800/7900/7970/9000/9070)

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Black - Shimano 10/11 Spd

Mfg PartNum: CSOSPW10801000 

Red - Shimano 10/11 Spd

Mfg PartNum: CSOSPW10802000 

Mfg Warranty: 48 Mo. Parts

Warranty URL: https://www.ceramicspeed.com/en/cycling/support/warranty-program

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Its worth it....
by Eric
Los Angeles

I think its worth the upgrade.

Drive train feels lot more smooth.

Only had it a week. But I do feel the difference.

Reviewed 6/17/2019
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