L'article : Previewed: Unveiling Truvativ's Hammerschmidt
Introduction de l'article : Hammerschmidt is a crank and bottom bracket combination with an integrated planetary drive mechanism. It's essentially a two-speed crankset. It gives the reliability of a single-ring system with chainguide and the gear range of a two-ring system, plus improved shifting. At first glance it looks (...)
Le site : BikeMag.com : bike magasine online [EN]
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