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In Stock & Ready To Ship — XT/Ultegra RT-MT800 Disc Rotors
Ceramic Speed OSPW SRAM RED eTap 11-Speed Red - Sram Etap Oversized
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Ceramic Speed OSPW SRAM RED eTap 11-Speed

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The CeramicSpeed Oversized Pulley System for SRAM eTap is a direct derailleur cage replacement that reduces friction by up to 40%. This is made possible by the larger 17T alloy pulley wheels that spin on high-precision ceramic bearings resulting in a savings of at least 1.6 watts.


  • 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.

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Red - Sram Etap Oversized

Mfg PartNum: CSOSPW10902000 

Mfg Warranty: 48 Mo. Parts

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

Ordered by Most Relevant First
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Reviewed 5/17/2020
by Seattle Dave on rock
Cycling Enthusiast
Seattle wa
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Works well, a bit noisy, may or may not help save watts.

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.

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Reviewed 2/19/2018
by SF Rider
SW Florida
Value Rating
Overall Rating
3 of 6 customers found this review helpful.
Never again. too much for too little.

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.

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Reviewed 1/4/2018
by Jenzar
Competitive Racer
Northern NJ
Overall Rating
Ceramic Speed - Smooth like butter

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

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