Got a NP Mega a month or so back, and the only niggle that I have with it is the 12mm RWS that comes with the frame (branded Nukeproof/DT Swiss). OK, so I have big feet, and my size 12s may have bumped it when I had the lever pointed 'forward', but I've also experimented with the lever pointed every other way, and invariably finish a ride, and find the lever has slackened off by up to 90 deg. Not happy
The other systems I've got or have used are a DH-style 'bolt through' with pinch bolts on the frame, and a Rockshox Maxle. Neither of these has ever come undone or slackened off. The biggest difference I see I'm losing with the DT Swiss RWS is that the whole system relies on the tension being held in the screw-thread, as there is no cam/wedge to hold/jam the axle/maxle in place.
So, has anyone else found this an issue? Is my only option to buy a 12mm Maxle?