El Cid - I just can't see why you would splash the cash for a ti Brompton and put a heavy Brooks saddle on it. Don't get me wrong, they are beautiful and comfortable saddles, but not the best choice for every application. The standard Brompton saddle is good - check it out. Another alternative that has worked well for me (over 200 miles in one day - but not on a Brompton) is the Terry Fly Ti - it is quite lightweight and for me, very comfortable. It is half the weight of the Brooks B17.