When the quick release levers are fully locked, what position relative to the frame or ground should they be in?

Thanks!

For the front shall be in line with the forks and the rear in line with the seat stay. It more for appearance than anything. Some people will go with the ground .

Its not only looks. I keep mine close to the frame incase they catch something and get loose. I think its safer this way.

I put both at a 3 o'clock position. Chances of the lever being caught on something when moving forward is reduced. It is also more aero this way.

But if another cyclist runs up your rear wheel with his front, he could release the skewer. I put the rear skewer between the seat and chain stays.

Good call. I think I'll change the rear in the future.

+1

In my opinion this is the worse possible location for the skewers, it definitely looks good but being so close to the fork/seatstay makes it very difficult to grip when you want to undo it, particularly when wearing gloves. I set mine vertically, that looks OK and they are easy to grip.

It may be your opinion ,but there is a less chance of something catching the skewers and opening them if you do use them in my original statement . like San Rensho stated. You should look at safely first.

Once I saw this movie, I always set the QR levers in the same way done here. Fast forward to 2:30.
https://www.youtube.com/watch?v=3ktTXjSqvJc

I put my front at 3 o'clock and my rear at 12 o'clock. On mountain bikes being ridden on trails, I have heard it's better to put the front parallel to the blade fork, and the rear tucked in between the chainstay and a rear stay. The reason being that they might get caught on a dead tree trunk, rock or an outlying branch.

One of the fun things my friends and I did on training rides was to sneak up behind people and unflip their rear wheel's QR with our front tyre if they had it aimed backwards.

You guys must have fabulous bike handling skills if you could do this without crashing. Normally even touching a front wheel to the rear wheel of another bike will put you on the ground, never mind being able to guide the front tire between the qr flag and the chainstay with enough force to open the flag.

Well, we had lots of training from our coach and bumping wheels and shoving was one of the training exercises. He'd have us do laps in parking lots and randomly toss out crap like basketballs, water-bottles, traffic-cones, etc. and we'd have to avoid it. Then he'd put us into small packs of 5-10 and we'd do it again. Not only would we have to avoid the obstacles, we'd have to avoid the other guys who are scrambling all over the place.

We do this at low speed on cross bikes (minus the basketballs and such). You learn how to get off when you rub a wheel. It's a a VERY useful skill.

Bike bumping is a crucial skill for racers to have. Get a friend, some elbow, knee and shin pads if desired and hit the local high school football or baseball fields and have at it!

what is your meaning

There's plenty of room for biffo without coming off, but I can't help thinking any QR you could undo with your tyre would have to be pretty damn loose already... or so tight it's not closed properly.

That's for sure, I'd have to imagine the trailing rider would almost have to go down while trying to pry open a properly tightened QR in any orientation with his front tire.

yup. Good luck opening mine with your front wheel

1) Observe what other local riders are doing for QR orientation.
2) Come up with a different orientation.
3) Invent some ponderous-sounding rationale for why your way is better.
4) Preach the word and see how many people you can convert.
5) Go back to step 1. Wash, rinse, repeat.

FWIW, I set mine at the 3:00 position, open end to the rear, and I do that just because I happen to like them that way.

Yup !

Dude... I place mine at 4:00. That way it's always 4-20....

Seriously, on my MTB It's sticking straight back to prevent catching on foliage and opening up. On road wherever seems to make sense at the time.

Front inline with forks, rear between the seat and chain stays.

My front is Up just to the rear of the fork line for protection I don't catch it on something or stab someone with it if they go down in front of me. Rear is inside chain stay and a rear stay for protection also.