Look At My Wad (Free Advice Wanted)

Hello,

I'm going to put together a fixie for my commute to the City. It needs to be light because there's a 200m stretch of 1% gradient,

For heavens sake. A bike like that is not for riding. It's for hanging on the wall and looking at and for showing off to guests and other visitors. Riding is will make it dirty and singularly less aesthetic. If you want to ride, CycleSurgery or Evans will do you a very nice hybrid. Better still, take cabs.