Push Pull Cable

 I saw on a Tripod Reverse Trike that his gear shift was transferred from the gear lever to the gearbox shift on the opposite side of the motor so I investigated.

I had experience with outboard motor engine control cables and figured a 4' push pull cable would easily shift gears on my Honda ST1100 motor which on my trike is no easy matter, however I can mount the cable under the floor pan with a graceful bend  or two from the centre gear shift thru 90 deg to the gearbox shift,

I will start fabricating a new gear lever directly, see pic under for cable stats.