CeramicSpeed OSPW Derailleur Pulley System for SRAM Red / Force AXS

Item number: 76313

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CeramicSpeed OSPW Derailleur Pulley System for SRAM Red / Force AXS - black/universal
CeramicSpeed OSPW Derailleur Pulley System for SRAM Red / Force AXS - black/universal
CeramicSpeed OSPW Derailleur Pulley System for SRAM Red / Force AXS - black/universal
CeramicSpeed OSPW Derailleur Pulley System for SRAM Red / Force AXS - black/universal
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The CeramicSpeed OSPW derailleur pulley system for SRAM Red and Force AXS consists of a 15-tooth derailleur pulley for the top and a 19-tooth derailleur pulley for the bottom and a carbon-polyamide cage. The ceramic bearing balls are characterised by their particular hardness and suppleness.


Application: Road, Triathlon & Time Trial, Cyclocross, Gravel
Gearing: 12-speed
Capacity: 33 teeth
Compatibility: SRAM Red AXS, SRAM Force AXS

Technical Information:

Derailleur Pulleys: 15 tooth (upper pulley), 19 tooth (lower pulley)
Outer Cage Material: polyamide, carbon
Inner Cage Material: polyamide, carbon
Other Materials: aluminium
Bearings: 607 ceramic


- high-performance bearings with special ceramic balls made of 3rd degree silicon nitride (best achievable degree for ceramic bearings)
- CeramicSpeed bearing balls: 15 % harder, 100 % smoother and 99 % more resilient than commercially available ceramic balls
- ball bearing retainer made of reinforced polyamide, race made of hardened steel with polished channel
- unique durability and mileage: energy savings of up to 2.4 watts, up to 60% less friction thanks to OSPW system
- compatible with cassettes from 10 to 33 teeth
- two spring tension options
- handmade in Denmark


Ceramic Bearings by CeramicSpeed
CeramicSpeed ceramic balls are rounder, harder, smoother, lighter and more resilient than steel balls and ceramic balls from other manufacturers. CeramicSpeed ceramic bearings therefore last 3 to 5 times longer than other commercially available bearings. All CeramicSpeed bearings are manufactured by hand in Denmark under clean room conditions and are subject to a strict four-stage control procedure. Among other things, the size of the ceramic balls is checked down to the thousandth of a millimetre. Tests are then carried out in the laboratory or preferably by professionals in training and competition. CeramicSpeed bottom brackets guarantee you the lowest possible friction, optimised power transfer and maximum durability and also help you save watts and reach the finish line faster. It's not about seconds, it's about minutes!

The Oversized Pulley Wheel System (OSPW System) is a breakthrough innovation by CeramicSpeed, developed in collaboration with world-class triathletes. This unique system stands for 40 - 60% less friction compared to standard derailleur pulleys and allows power savings of at least 1.6 and up to 2.4 watts. The OSPW system features the unique CeramicSpeed bearing, aluminium derailleur pulleys and a polyamide-carbon cage, making it 3 to 5 times more durable than standard systems on the market. A real advance in the field of cycling performance.

Note from the manufacturer: The rear derailleur should be completely removed before transporting the bicycle in a travel bag, otherwise the OSPW System could be damaged. The damping mechanism of the original SRAM rear derailleur remains unchanged when installing OSPW.

Manufacturer Part Numbers:

black: 107378
red: 107379


The CeramicSpeed OSPW derailleur pulley system for SRAM Red / Force AXS includes:
- 1 x CeramicSpeed inner cage plate
- 1 x CeramicSpeed outer cage plate
- 1 x CeramicSpeed lower derailleur pulley
- 1 x CeramicSpeed upper derailleur pulley
- screws and bolts
- 1 x tool
- 1 x CeramicSpeed oil, 15 ml dropper bottle
- 1 x sticker sheet


in stock 2 to 7 days up to 10 days Out of stock inform me
  • black/universal
  • red/universal

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