It's not practical to ship 2 tandems to races, so I want to be able to convert our road tandem to a TT setup in a manner that the aerobars, and the road bars can be swapped out relatively easily.
My plan is to have a whole new front end for the captain, integrated aerobars (Excel has a great deal on 3T aura's right now) TT shifters and brakes, and a dedicate stem.
Swapping the hardwear will be easy, just 3 bolts; top cap, and two stem bolts.
The problem is the cables. Brakes will be easy; I'll use a cable splitter for the rear brake, and just swap brake cables at the cable splitter; and it won't be a big deal to undo and redo the front brake swapping cables and housing.
My question is what to do about the derailleurs. The bike already has cable splitters for the derailleurs, but taking the cables apart at the splitters won't allow the front portion of the cables and housings to come free because the splitter won't pass through the bosses on the down tube, given that the bosses are not slotted, like the brake cable bosses.
My thought is to take out the barrel adjusters screwed into the down tube bosses, and cut a slot in the bosses with a dremel tool or hacksaw. I'm a bit reluctant to permanently alter the frame though.
Another thought is to just undo the cable splitter from the cable where it pinches down with the 2 small allen bolts. The drawbacks here are the cable fraying over time, and having to readjust derailleurs with each swap.
Anybody have a better idea how to manage the cables?