CERAMICSPEED OSPW derailleur cage system Aero Coated | Shimano Dura Ace Di2 9250 / Ultegra Di2 8150
Is it possible to perfect what is already the fastest derailleur cage system? Ceramicspeed asked itself this question and worked together with the aerodynamics experts at Drag2Zero to find a solution. And the answer is: it is possible. An almost closed cage encloses the shift rollers and the guide plates and ensures that the air flows past unhindered. In addition, braking turbulence is avoided. Numerous tests in the wind tunnel have shown that air resistance has been reduced by up to 60% compared to conventional derailleurs.
Ceramicspeed's proven Oversized Pulley Wheel System continues to operate under the "cover" and ensures a significant reduction in friction. The large rear derailleur pulleys with 13 teeth at the top and 19 teeth at the bottom significantly minimize the movement of the chain links as they pass through the cage, resulting in less resistance. In addition, the enlarged cogs offer a longer service life than other commercially available systems.
Technically, the OSPW system is equipped with high-performance bearings and special ceramic balls made of third-grade silicon nitride (the best grade achieved for ceramic bearings).These balls are 15% harder, 100% smoother and 99% more resilient than those of other manufacturers.
In contrast to the already high-quality standard bearings from Ceramicspeed, the "coated" version has a wafer-thin protective layer applied to the bearing rings. This makes the latter even harder, extends their life cycle by a further 60% and reduces rolling resistance even further. This is why Ceramicspeed ball bearings are considered the best in the world.
The bearing cage is made of carbon fibers reinforced with polyamide so that the forces can be better distributed and absorbed and your rear derailleur works perfectly even under the most adverse conditions.
Ceramicspeed uses only the best materials and the latest technologies in production to always achieve the highest possible quality. All products are handmade in Denmark. No hydraulic presses are used during assembly. Manual assembly eliminates manufacturing tolerances and guarantees a perfect fit every time. So that you really only install the best on your bike!
For Ultegra 8150 rear derailleurs, the OSP cage uses the original factory washer. When fitting to Dura Ace 9250 rear derailleurs, please use the washer supplied.
Maintenance
It is important to lubricate the bearings carefully to maintain performance and longevity. Simply apply oil to the bearing seals so that the oil can penetrate the bearing. Ideally, this should be done when lubricating the chain, after washing the bike or after riding in adverse conditions.
Note
When traveling, please remember to remove the complete rear derailleur with an Allen key, as very few bike transport bags offer sufficient space for the OSPW system.
technical data:
Area of application: time trial triathlon
Material cage: carbon, polyamide
Material bearings: polyamide, steel, ceramic
Material rollers: aluminum
Bearings: ceramic, coated
Number of teeth top: 13
Number of teeth on the bottom: 19
Compatibility: Shimano Dura Ace Di2 9250 and Ultegra Di2 8150
Chain compatibility: 12-speed
Largest sprocket Cassette: max. 34 teeth
Color: black
Weight according to manufacturer: -
Weight self-weighed: 97g
Scope of delivery:
1x CERAMICSPEED OSPW derailleur cage System Aero Coated | Dura Ace Di2 9250 / Ultegra Di2 8150
1x 15 ml CERAMICSPEED oil for ceramic pulleys
1x washer for conversion of Dura Ace 9250 rear derailleurs