whats this worth ??

[HandyAndy]

I,m not sure of how the linkage is made in BEC, but its easy to change the direction of pull/push for changing up or down the gears on a bike engine,

Just use an adjustable tie rod with some rose joints to alter the position of the clamp on the gearbox output shaft on the bike engine,

In bike racing, its quite common to have the gear selection "down for going up the box", this gives more ground clearance when racing a bike as the foot is not UNDER the gear lever, known as "Race setup",
most bikes for the road are set up as 1 down , 5 up.

Sorry to waffle on, but its very easy to change to a personal preference, so try both

cheers
andy