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Less friction, more power: the OSPW pulley wheels by CeramicSpeed
The CeramicSpeed Oversized Pulley Wheel System (OSPW System) is a ground breaking innovation that has been developed in collaboration with professional triathletes and tested throughout the development process. This unique system is now available for Dura Ace R9100 as well. Compared to the original Shimano pulley wheels, in-house tests have shown 30 % less friction in the new CeramicSpeed OSPW System. The unique OSPW System is mounted with high quality CeramicSpeed bearings, aluminium pulleys and PA/carbon cage, which means that it has a longer lifetime - compared to other available standard systems on the market. For this reason this is a true advancement for the cycling performance.
Application: Road, Triathlon, Cyclocross
Capacity: 32 tooth
Kompatibilität: Shimano Dura Ace R9100/9150, Ultegra R8000-SS, R8050-SS (not GS-cage)
Derailleur Pulleys: 13 tooth (upper), 19 tooth (lower)
Outer Cage Material: polyamide, carbon
Inner Cage Material: polyamide, carbon
Other Materials: aluminium
Bearing: ceramic 607
- high performance bearings with special ceramic balls made from silicon nitride grade 3 (the best grade a ceramic ball could be given)
- reinforced polyamide bearing cage, hardened steel raceways with ultra smooth polished groove
- CeramicSpeed ball bearings: take 99 % higher loads, 100 % smoother, 15 % harder than other ceramic ball bearings in the market
- 30 % lower friction thanks to OSPW system
- unique durability and lifetime
- handmade in Denmark
Manufacturer’s note: When travelling, please remember to dismount your entire rear derailleur with an Allen key, as the OSPW System will not fit in most bike travel bags and could be damaged if left on.
For advice on mounting and maintenance see the CeramicSpeed website.
CeramicSpeed OSPW systems with (uncoated) ceramic bearings are warranted for four years. For more information please see the manufacturer’s webpage.
- 1 x CeramicSpeed OSPW System front cage plate
- 1 x CeramicSpeed OSPW System back cage plate
- 1 x CeramicSpeed OSPW System jockey pulley
- 1 x CeramicSpeed OSPW System idler pulley
- 1 x bottle of CeramicSpeed oil
- 1 x sticker sheet
- bolts included