I already wrote about a fully wireless Shimano MTB Di2 patent last spring ... including: a ‘motor unit’, a rear derailleur, a flat bar shifter, a second rear derailleur, and a new dual ...
ANT+ is a wireless protocol specifically designed ... to start coloring outside the lines. In this case, Shimano went off book with their DI2 groupset, leaving [kwakeham] with a reverse ...
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