Beginners Polo

James, Maybe look at getting a smaller chainring if you can. I have a 22t sproket for £5 if you're going fixed? 40 - 50 gi is good, the less the better.

The Herne Hill jumble is the place to get all this stuff, but maybe at LMNH jumble as Kev says.

I need a 1" stem and risers if poss guys.
Cheers.
Get a thomson shim and use 1 1/8" stem. It will give you far more possibilities.

http://www.wiggle.co.uk/p/cycle/7/Thomson_Stem_Shim/5360017271/