The STI's won't work with the V brakes (assuming you mean Dual-Control Levers for drop bars), need to change the V's for canti's (or possibly mini-V's) and with canti's you need somewhere to fix hangers for the cable (possibly on the front stem, not sure about the back). I have the same quandry with an Airnimal Joey I'm thinking about, want drop bars and sti's, nowhere to fit hangers, mini-V's might work I guess. Anyone have direct experience of this?