Not saying the HD dealer is right, but the matter reminds me of Glock owners running hot hand-loads through their Tupperware and breaking something.
Then they are outraged when they find that Glock meant it when it said their warranty was voided by shooting hand-loads.
You build something and guarantee it as is.
A trike festooned with flags and other add-ons—it’s also something like a guy taking a chainsaw boxed, in pieces, to a saw dealer and asking for advice and some parts.
So he takes it home and assembles it, but it doesn’t work and returns unhappy and wants the dealer to fix it.
How is this the dealer’s fault?
Harley sells flag mounts, sells bikes converted to trikes, services bikes that have been third-party converted to trikes, and their rider base is widely known to contain a lot of really heavy men. All of these put significant strain on drivetrains. If they didn’t think their bikes’ drivetrains could handle the addition of two flags (another common addition due to the “Rolling Thunder” crowd), they wouldn’t sell kits to mount said flags, nor would they have anything to do with trike modifications or overweight riders.
I think Harley is going to end up eating this.
A argument can be made the this trike, if it were towing a Harley approved camper trailer, and was fully loaded with two on the bike, would be suffering a lot more drag then two flippin flags...