Is it a TT bike? If so you might find another solution. Peter Reid had those aerodynamic brake levers at Hawaii in 03. I don't know who made them and if they were made in large numbers. Never saw them up close but they were straight foreward extensions. I assume you could brake with them by simply pushing the straight extensions down or sideways as this would pull on the cable. You might even be able to use them on a road bike set up.
maybe that helps. good luck.
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