I'm looking to build a 10-speed...no front der. with a single-speed crank and a 10-speed rear der. This will basically be a flat-bar road bike. I ride a lot of bike paths with the wife and I really don't need the extra gears that a double or triple crank provides (plus I already have a bike or two like that).

My question...who makes a nice lightweight single-speed crankset? The bike has a standard english bottom-bracket with a Dura Ace 7900 BB installed. I'd like to preserve that if I can.

I'm not really looking to cheap out on a crankset. I have a really nice frame this would be going on and I'd like to keep that theme. Plus, I have a feeling I'll be riding this build quite a bit.

Thanks.