"Turning my attention to the mounting arrangement. I looked at both traditional drop handle bars and TT (time trial) aero bars".

My objective was to find a universal bracket arrangement that would work for both types which could provide some degree of adjustability, to be adaptable in the widest range of set-ups.

I started by sketching out some ideas for a traditional bar clamp arrangement that could attach to either side of the handle bar stem with a set of cantilever arms projecting forward to hold the generator motor and turbine blades.

I thought to have two generators, one each for the front and rear lights. Initially I tried an arrangement with a pair of turbines held from a central knuckle projecting left and right. It struck me that this was likely to be unstable, so I next looked at a single turbine with the pair of generators attached to each end of a central axis. The latter configuration gave rise to a splayed or ‘Y’ shaped set of cantilever arms. This seemed like it would be more stable. To provide for the desired adjustability I came up with a detail for the ends of the ‘Y’ brackets to incorporate cylindrical knuckles to hold the generator motors and allowed for the arms to be able to slide left and right.
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I worked up this design in CAD focusing on issues such:
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                   •  optimum width and diameter of the turbine for both drop and TT bars
                   •  location and arrangement for battery compartments & cable ways
                   •  size and fit of the PV panel
                   •  size and fit of the front facing LED array (I did not have time to work-out                       the rear)