this is from my point of view and experience, anyone looking forward to knee sliding should keep these things in mind, its almost impossible to do on public roads, because most turns are at 90o and the good turns have to much traffic and or pebbles and dirt. never just stick your knee out ( you won't come close to the ground ) lean your body off the bike and your head should be over the mirrors, and get the bike as low as possible to your own risk. further more i learned that i can only get so far down on some turns because, like i said street roads are very shitty i lost traction in my front tire it was the lowest i ever been yes the knee touched but the bike fought me as almost it was telling me it can't go further down with out slipping there was nothing you could see at 45 mph and it was scary when the tire slipped but it was the road, i looked back and saw tiny dirt and pebbles. it could have ended bad but its just kinda stupid to be doing that anyway unless your on a track, haha don't get me wrong i enjoy doing it to a certain extent, but on public roads you better watch out for pot holes and my least favorite....pebbles! one last thing i should mention is don't wear super tight pants they won't let you shift your weight easy i notice slightly loser pants have given me an edge when it comes time to get really hanging off the bike.