This customer rode the stock wheels that came with his Argon 18 Krypton GF for ~15,000 miles when he noticed some cracking in his rear rim. While the wheel is being warrantied, he took the opportunity for a nice wheel upgrade! We are a big fan of HED wheels; they may not be lightest or flashiest, but they have great aerodynamic properties and are also very durable. These are the HED Vanquish RC4 Performance model, running Continental GP5000 32mm tires. We think they look great. Enjoy your new wheels, Russell!