MattyK wrote:*edit* by the way, it's a shame that lever design is stuck with the concept that it must be clamped to a traditional drop bar. There would be so much scope for elegance and ergonomic benefits if the two were combined, and the benefits of carbon fibre manufacture (as opposed to tube bending) were fully utilised. Bolt-on, flat mount hoods. Hydraulics and/or mechanisms hidden inside the bar. Internal batteries. etc.
Top end is all going electronic anyway so no shift mechanism just buttons of some style (probably still via lever deflection, but just the one lever)
And disk means the levers can be smaller and weaker because it's single finger stuff.
So that means levers are a simpler mechanism and perhaps will evolve into a design where the structural protrusion is a seperate piece and the small lever mech bolts onto that.