Is anyone else running their Lefty hubs without the dust seal?
Yes, well no, not any more as I ordered some replacement seals a couple of months ago, but for the 9 years prior to that I’ve had 3 wheels running without them without issue. 2 of them fell out and I lost them, one I removed as it squeaked intermittently, and that made me grumpy.
There’s still the lip seal on the bearing, and once the wheels is seated properly the bearing is not in a particularly prone position so unless you’re regularly giving it a full dunking and not cleaning it’ll likely be fine.
You could try calling Tony Nunn at (formerly Thumbprint Tuning – not sure if his old number still works?) iBike Motion in Woodbury, Devon and see if he has any laying around.