>>1710929>Aquire bike/s>start your own sports bike rental businessthe overheads and risk management would be hectic
at least based on what I know of mountan bike rentals (they are alike to ski rentals but worse)
>>1711014>route your shifters onto the aero-barsmaybe with Barcons or Gripshift,
But there are very few examples of down tube or stem shifters being fitted to the end of aerobars, this method seems to have disappeared after 1987
>>1710990riding the depreciation curve might be a safe bet
however second hand bikes tend to have flogged chains at the very least
with training bikes being the most abused