Another option is to use V-brake noodles right at the STI levers so the cable routing bends straight down. I use this setup on my Casseroll and it makes significantly more room to put a handlebar bag. Shifting performance is not affected in the slightest.
I should also note that you can run 28mm tires on a Delgado rim, which I am also doing on my bike. I measured ~19mm of interior rim width, which according to the chart on Sheldon's site is acceptable for widths as low as 28mm.
Originally Posted by
zoste
The Casseroll is equipped with Shimano 105 group, including the "brifters". You really can't fit a good sized handlebar bag/front bag without interfering with the STI cabling.