CeramicSpeed claims its new derailleur cage could save you 2.5 seconds over 25km - but will set you back €739

CeramicSpeed shares full details about its OSPW Aero, developed with British aerodynamicist Simon Smart, which it claims is the world's fastest pulley wheel system

CeramicSpeed OSPW Aero pulley system
(Image credit: CeramicSpeed)

CeramicSpeed has collaborated with British aerodynamicist Simon Smart of Drag2Zero to develop a new derailleur cage that claims to save 2.5 seconds over a 25km time trial ridden at 50kph or 7.2 seconds over 40km.

According to the Danish company, the CeramicSpeed OSPW Aero reduces drag by 40% on average and at some points up to 60% compared to a stock derailleur.

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