The benefits of a higher cockpit
With a position which exposes more of the torso/head as a frontal position, the effect of cooling devices such as fans may have increased benefit; allowing better body temperature regulation and helping to improve performance. This would require the cockpit position to be set in a higher configuration; and would be in great contrast to outdoor specific positions. Therefore, it could be a challenge to achieve this position on many racing bikes, where they are intentionally made with low frame stacks to allow these aerodynamic positions. Perhaps this is room for yet another type of bike frame, one specifically for E-Racing, N+1…?
Another potential benefit of this higher cockpit position could be in giving a more efficient pedal stroke through reduced requirements of hip and knee flexion at the top of the pedal stroke. High levels of flexion in these joints often leads to reductions in power output, which outdoors can be mitigated through aerodynamic gains. Indoors however when aerodynamics is not a consideration, there is no benefit in doing this and so opening these joints up is likely to only improve pedalling efficiency and thus power output.
Saddle positioning for indoor riding
Whilst some restrictions apply to the saddle fore position due to the UCI regulations, it would perhaps be more interesting with indoor riding to consider a further aft saddle position anyway. This would reduce levels of knee flexion at the top of the pedal stroke, allowing the knee extensors to contribute to pedalling more effectively earlier in the pedal stroke due to them being at a more optimal length for force production. This pedalling position could also perhaps help in limiting angular deceleration of the pedal through top dead centre, giving a smoother pedal stroke through more sustained angular momentum. Given the higher cockpit position this then would have little detriment to hip function, as the rider would already be in a more extended position too and therefore would allow effective force contributions from the hip extensors during the power phase.