No rubber sleeves. My hopes are to make cleaning them an important part of cleanup in general. That should be good enough to give them a long life.
The thing I'm worried about is snagging the front ones on the tire or roots/rocks. Seems to me that the front ones have more slack than the rear. So that's the reason for loosely zip tying them to the UCA.
Before I tightened down the new line, I made it form a loop away from the tire. I figure once you have them tight, they will probably be okay and hold their form somewhat. I zipped it as an added security measure to prevent it from hanging out where it could be grabbed. I left plenty of slack in the loop (ziptie) to allow free travel of the hose, and to keep it off the UCA and the tire... It's raining like hell here or I would go get some pics.
The rear line didn't give me much more slack. I think it's about 2" longer (don't know for sure, I didn't measure it) What I do know, is that my stock lines would get a little snug at full droop. The new line will give me plenty of room now, so I won't be worried that I'm going to snatch them off in a pinch, thus ruining a perfectly good day of wheelin'.
I had to wait about a month to get mine.