Is This Shimano’s Dura Ace Wireless Shifting System?

Patent Filings May Show New Dura Ace Wireless Speculation is running wild that the next generation of Shimano’s vaunted Dura Ace component group is coming soon – likely sometime this year, to align with both the usual four year product cycle length for Dura Ace  (bumped to five years due to COVID19), and Shimano's 100th [...]