That sounds pretty-accurate.
I've written before about a local guy here in So. FL whose low-profile rear tire & larger-dia. rear wheeled bike which was built by my friend's shop, was passed on top end by a stock VMax even though the bike was supercharged. Yes the supercharged bike was quicker to top-end, but that was below the top end of a stock VMax, due to the shorter-height large dia. wheel/low-profile tire. The guy had bought a lot of high-performance stuff from Jon Cornell, which had been installed by the shop but the top-end result was a shock to him. He called Jon Cornell to comment, "how is this possible?" and then Jon Cornell called the shop owner to tell him about the customer's complaints, and they both had a good laugh over it. Evidently the bike owner hadn't paid much attention to what the mechanic/shop owner had told him, that this would happen. Swapping on an OEM size rear wheel & tire and running that would have showed the bike owner that if aero issues allowed, the stock rear wheel/tire would allow a higher top-end.
