Just guessing here, again, but:
Caley travels *a lot* more than most people here, and the cost of shipping the bike is *probably?* covered by VeloNews, especially if the bike fits into a normal looking case (see prior link)
So what is needed: an ultra-light travel bike that minimizes costs... or one that is dependable and is light-enough? So that might be why he chose Ti.
Yes, you do have a point that a S&S coupler on the ISP is just like having a seatpost, and yes an additional tool is necessary... but you're going to have that tool anyway for the rest of the bike, and while a seatpost can be removed/placed often enough each time you do that you lose a bit of grease or need to re-grease, and with the S&S there is no need for greasing issues of seatpost insertion, nor any need to tighten the clamp just right and so on.
I personally would prefer a regular seatpost and I do not like ISPs, but this is not my bike and I don't travel with a bike nearly as extensively, often, or far, as Caley does. Maybe Caley prefers ISPs? Or maybe he prefers having the ease of just attaching the S&S-ISP-thing and knowing that with one turn of the tool the post is locked in place, won't slip, and is at the ideal height? That might make sense if you're traveling all the time - for work - and want to put the bike together to get a quick ride in before getting to your work duties.
And yes, you're right about integrating the saddle mount into the upper part of the S&S-ISP bit, but that's some good observation on your part and frankly I was more interested in the merits of the S&S vs. ISP vs. Seatpost than the weight savings. But hey, since the ISP is now coupled with an S&S, he can simply get that mod done separately by the frame maker while he is still traveling (compared to having a regular ISP where he would be without the bike for a while), and then swap out the new S&S ISP for the old one... ta-da! No loss of ride nor travel time with the bike.
Let's see what Caley says.
ps: I don't design frames, I design graphics, identities, and a whole bunch of other things but certainly not frames. I've never claimed to have designed frames, but graphics for frames is as close as I'll get.
|| Other projects in the works.