I also have the AForce AL33 wheels from Dave at November. I have the non coated rims with Powertap G3 hub and I9 front hub. Just fantastic wheels, now about 14 months of riding. I have not serviced the hubs or bearings. The wheels are silent. They are fast. Dave builds really great wheels. I have emailed I9 about bearing replacement and tools, and they said their hubs are very similar to Zipp internals, front and rear, with different size bearings. I was just inquiring about bearing drift and presses. Should be really easy, but the wheels, I9 front and Powertap rear, still spin smoothly and quietly. I like these wheels a lot more than my Zipp 30 course clincher discs on my other bike.