The profile of the teeth, completely redesigned in line with the Ultra-Drive project, makes it possible to achieve the maximum response speed at the moment of shifting._x000D__x000D_
The synchronisation obtained by establishing a specific position of the teeth inter sprocket makes the passage from one sprocket to the next very fluid and fast._x000D_
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And in order not to lose rigidity, the last two are fitted on an aluminium frame._x000D_
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**Technical Specifications:**_x000D_
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* Steel_x000D_
* Ultra-Drive_x000D_
* Single sprockets_x000D_
* Nickel-chromed finish_x000D_
* Supplied with lockring_x000D_
* 4 pin Campagnolo fitment_x000D_
* Weight: 248g
