Replaced the totally worn-out left Ultegra 9-speed brifter on our tandem with a 10-speed Ultegra. Shifts the same crankset even better. Have too many 9-speed parts for the other side to replace that one. I'll replace it when I run out of spares. Meanwhile my FlightDeck only shows the RD so Stoker has to remind me which ring I'm in. PITA. Can't replace the bracket until I replace the right brifter too.
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