Shimano will never go wireless. SRAM hold the patent for a wireless control systems and I can't see them licensing ..
I'm sure Shimano have a whole stack of patents that SRAM would love to access, so some kind of patent licensee agreement between them is highly likely, if it doesn't exist already.
@andyp started
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Shimano will never go wireless. SRAM hold the patent for a wireless control systems and I can't see them licensing ..