It reads to me like the front of the wheel opening is the farthest rearward you can go. This is the way I'd read the quoted sentence.
"It shall not protrude aft of the forward- most part of the front fender opening (cutout), "
It reads to me like the front of the wheel opening is the farthest rearward you can go. This is the way I'd read the quoted sentence.
"It shall not protrude aft of the forward- most part of the front fender opening (cutout), "
I agree with Not A TA on the rule interpretation. It sounds like the person you are talking to is getting hung up on the 4" portion of the rule, which is a vertical offset from the hub centers, not a longitudinal offset.
What you have laid out in your picture is the simplest interpretation of the rule.
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