Cranks..

Next I tried to think what would be the optimum crank setup, and I started to search them online, I would like to pass the old tapered type of BB and go directly to ISIS-type to be more rigid. I found an ultimate crank, FSA TT AERO, and with 108mm BB Q-factor would be 135mm, (and with very low price), but... ISIS type of BB's are not manufactured less than 108mm :(. Odyssey Black Widow Lite Arms are quite nice, but uses a tapered BB.. Suigino RD setup comes with the 103mm BB but is a tapered one :(. I quickly sketched one solution, what's your opinion about a crank setup of this:



Dont know are these available anywhere, but would be easily made and relatively sturdy. In some old upright bikes these were used, say years back..
Big plus would be the chance to deside the width to your specs very easily. This is not a splined one, which seems to be available with the same concept, but very hard to make yourself. If someone could offer a splined ISIS BB with different widths, that would save a day or two..

Found also very good site about BB's and cranks:
http://www.sheldonbrown.com/bbsize.html


These cranks are quite nice and narrow, Q-factor is 135mm with 108mm BB. Weight is 600grams + BB (~200grams), ISIS center, lenghts from 170 - 180mm.