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beach-
What is the bit sticking out the back of the saddle on this bike?
GPS tracking receiver/transmitter, fitted to all TdF bikes this year for live tracking of every rider
http://www.dimensiondata.com/Global/Global-Events/Tour-de-France/Pages/Home.aspx
gbj_tester
Why was Giant-Alpecin riding with a trispoke instead of the ~80mm rims everyone else was using?