Ceramicspeed Driven: Not Only Efficient, Aero Too

CdA chart of CeramicSpeed Driven drivetrain

CeramicSpeed sent shockwaves through the cycling industry at last year's Eurobike with its radical new drivetrain concept that claimed drivetrain losses of just 1 per cent, eliminating vast amounts of friction by ditching the chain and derailleur system adopted by others such as Shimano and Campagnolo . The Danish company has seemingly let the (metaphorical) brakes off too, as it is full-steam ahead in developing their new drivetrain. It has since prototyped a covered version and worked in conjunction with Specialized to test the aerodynamic properties of this new drivetrain. Driven has been retrofitted to a Specialized Venge - already the most aerodynamic road bike Specialized has ever produced - and was pitted against the standard Venge in Specialized's own wind tunnel. The concept showed improved aerodynamics in the region of three per cent across all yaw angles. Ingmar Jungnickel, Specialized's Aerodynamic R&D; Lead, claims the prototype Driven drivetrain could ...

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