There's always discussion about getting LL from the airport and what it can do for the bike. First, I'm pretty sure it is mostly illegal, mainly from the standpoint of that the "road going" taxes have not been paid on that gasoline. It's obviously meant for airplanes. Second, the lead part would be helpful for an older engine that has not been converted to unleaded seats. But it's usually something you add in small quantities...maybe a cup or two per tankful. I wonder how useful (wasteful?) it would be to get a full tank of it. Finally, I don't think we really need much octane beyond what we already get at the pump...if you can't run the bike on 91-93 pump octane, you've got more problems that really should be dealt with. And if you've converted to an unleaded topend or it's already in the bike, you don't need the lead anyway. I just see it as more of a hassle.