I had a Scottoiler on the R1 for a couple of thousand miles, but it made the wheel really dirty, so I opted to remove it and go back to the old way of lubing the chain manually.
Now I use Holts chain lube – it’s a gel I guess, looks a lot like Gillette before you agitate it (when it’s the green goo), it seems to cling on pretty well and the flick off isn’t too bad.
No idea on the tyre question though – sorry.