Mike,
Thanks. :cheers: The wheels are the result of several months of research on my part as well as collaboration with Roger Kraus Racing, Keizer Wheels, and eventually, Bogart Racing. Nothing against Keizer, but Bogart won out because of Rich Bogart’s above-par willingness to work with me one-on-one in meeting my wheel needs. There wasn't a single time when we talked that he didn't treat me like I was his only customer.
After committing to making the move to the larger Avon 16” slicks, Rich began working with me on ways to reduce wheel weight and decrease rotational mass. This twofold goal was met by keeping overall wheel circumference (in areas where practical) as small as possible. We settled on using 15” wheel centers and basically built 15” wheels until you get to the 16” mounting flange. Below is photo that illustrates the result.
I haven't weighed the wheels yet, but I believe overall un-sprung weight will very likely end up being reduced by around 20% with respect to the heavier Summit Racing 15" wheels I've been running.