Here's some info on the LEWs:
LEW Atlanta clinchers
The road racer’s garage is a tangled forest of spokes--wheels hanging from nails, hooks, or anything else that protrudes from the rafters. The reason is that no clincher light enough to race on is strong enough to train on. Enter Atlanta, the world’s first 100% graphite clincher. A unidirectional laminate marvel and the first real advance in clincher rim technology since the category was invented. Built with our 3D/DL process, Atlanta clinchers aren’t subject to the inherent limitations of traditional materials. The result is a rim that’s strong enough for the most brutal training ride and light enough for top-tier racing. Once again walk upright in your garage. Features hidden standard spoke nipples and ceramic braking surface.
As for the weight, if they have the White Ind. LTA hubs then I'd say they are probably pretty close to the new Reynolds Stratus clinchers. You won't have any problems using these wheels at 155 lbs. LEW wheels are very strong and durable wheels.