I have an old set of bars 1 tube bent to be both the bullhorns and the aero bars , the market for that is small in the aftermarket, triathletes mostly..


OEM demand probably Nil.
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Randonneur bend drop bar, with bar end shifters , and older brake levers ,
for cantilever brakes.

Then with a R'off, adopting trekking bars, as they are 22.2 tube,

for that grip shifter, they are compatible with hydraulic MTB brakes too..




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