Cambios Hidráulicos... y uno pensó que lo había visto todo 
Aunque... se va de las manos a 2000USD

http://www.pinkbike.com/news/Pinkbike-First-Look-Acros-AEG-11-MT-Hydraulic-Shifting.html
http://www.bikeradar.com/news/article/sea-otter-2011-acros-bring-hydraulic-shifting-to-market-29931
http://bicycletech.blogspot.com/2006/09/red-5-hydraulic-shifting.html
http://bicycletech.blogspot.com/2006/04/shimano-patent-7032475-hydraulic.html

Aunque... se va de las manos a 2000USD


http://www.pinkbike.com/news/Pinkbike-First-Look-Acros-AEG-11-MT-Hydraulic-Shifting.html
http://www.bikeradar.com/news/article/sea-otter-2011-acros-bring-hydraulic-shifting-to-market-29931
http://bicycletech.blogspot.com/2006/09/red-5-hydraulic-shifting.html
http://bicycletech.blogspot.com/2006/04/shimano-patent-7032475-hydraulic.html
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