Hmmm...
Call me thick here, but from something Marz Tech mentioned, I think I just realized something, that at least for me, was a dim light bulb. I've been in the camp that thinks the 15mm design is dumb in light of the ability to have a light 20mm setup. MT's comment about the intent of having an overall light wheel setup for the 15mm makes some sense in light of manufacturers wanting something that will keep people from riding extra-light 20mm wheel setups on bikes and applications where they were not intended. Yeah, I'm not fond of a company or big brother who attempts to paint me into a corner and thereby takes my freedom of choice away to use any component that I want in any application that I want. But from a standpoint of warranty, integrity, and liability on the part of the manufacturer, I can kind of see a place for 15mm over QR but less than 20mm.
Am I making any sense here? I know we can still build or personally order up wheels in any crazy combo of parts that one can imagine, but the responsibility is then ours and not some manufacturer. Maybe it's not that there's that big a gap of strength and such between 15 and 20...but...wheelset manufacturers, prebuilt wheelset companies, and such can perhaps build wheelsets at a lower weight level in different configurations with some knowledge that they can't be run in a DH/FR bike, thus lowering the company's exposure to claims...both warranty and possible liability. Even if an individual uses a spacer or adapter system to run a 15mm wheelset in a 20mm fork, that is the individual's responsibility. If 15mm actually displaces QR on any forks of any level of basic quality, then this whole issue may be a good idea and have some logic associated with it.
Again...this is just something that came to mind and is obviously not in concrete.
