after building my kilo track from bike island i found out that i was having problems fitting the brake. what happens is when i tighten the brake to the fork, it pinches the headset cup, causing my fork not to turn.. my local shop said he has seen a couple of kilo's come to his shop with the same problem.. so he gave me some spacers to try and help.. when i put those on it rubs on the outside of the cup of the headset, making a grinding noise, and not a smooth turn of the wheel. the geometry between the frame and fork is so tight. anyways, the day this happened i was late to work and at this time my bike was my only mode of transportation.. so i road brakeless (in Seattle) which is kinda scary at first.. lot of hills. its been about two weeks now, and im getting used to riding brakeless, i have had a couple of close calls, but nothing serious.. im riding a 46x16 which is just killing my legs though, and its hard to stop on hills.. im bumping down to a 43x16 friday, i hope this makes a bid difference. anyways what do most of you brakeless riders use for gear ratios?