Sorry 'bout the crosspost from the road forum, but I know many of you have bikes w/new drivetrains and I don't know if you check the trade thread over there.

Have:
Ultegra 10spd 11-23 cassette, very low miles

Want:
Shimano 10spd cassette w/27t low cog, low/very low miles. Will consider 105, Ultegra, or DA, with some cash or other trade stuff from either me or you to equal it out.