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Ceramic Speed OSPW SRAM RED eTap 11-Speed Black - Sram Etap Oversized
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Ceramic Speed
OSPW SRAM RED eTap 11-Speed

Mfg PartNum:
  (3 customer reviews)
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The cage unleashed.

CeramicSpeed's Oversized Pulley System frees up to 40% of the friction in your SRAM eTap rear derailleur, leaving you with a savings of at least 1.6 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 and T6 installation wrench
  • Claimed weight is approximately 70 g
  • Compatible with 11-speed SRAM eTap only

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.

Ceramic Speed OSPW SRAM RED eTap 11-Speed
Other styles of this product are available.

Black - Sram Etap Oversized

Mfg PartNum: CSOSPW10901000 

Red - Sram Etap Oversized

Mfg PartNum: CSOSPW10902000 

Ordered by Most Relevant First
5 stars
4 stars
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1 stars
Ceramic Speed - Smooth like butter
by Jenzar
Competitive Racer
Northern NJ

This reduced friction on ceramic speed is awesome. big thumbs up

Reviewed 1/4/2018
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Works well, a bit noisy, may or may not help save watts.
by Seattle Dave on rock
Cycling Enthusiast
Seattle wa
1 of 1 customers found this review helpful.

Installation is quick and easy and shifting works as expected. Materials and build quality appear first rate. The pulleys spin well. I do notice a bit more chain noise from the metal pulleys which is mildly annoying but not a deal breaker. I do worry about how low the cage is to the ground and it may hit objects like curbs, but that's probably not really an real issue. The upper pulley wheel can contact the cassette when the chain is removed or de-tensioned. Not really a problem but noteworthy. Looks are subjective, I kinda like it and kinda don't. Can't tell if it's saving watts, maybe 1 or 2 is what I'm assuming. Bangs for the buck I see low, but if you have cash to burn, it's an option to consider.

Reviewed 5/17/2020
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Never again. too much for too little.
by SF Rider
SW Florida
2 of 5 customers found this review helpful.

The part itself looks great and a lot of craftsmanship went into it, but I am embarrassed that I paid this much for a drivetrain component. Too little gain for the price.

Reviewed 2/19/2018
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