Does it need to be clamped at 4 points (front and back) or just 2 (front only)?
1615716
Looks like it only clamps in two places (front) but you should ask the company to be sure.
166325
It should be all 4, I bought these about 2 years ago and received 2 for the front and 2 for the back.
29664
None, works great. It is not adjustable front to back, it is fixed location as by design of the car's mounting holes. But, I've already hauled things so large they were over the front and rear bumpers, no problems.
1767075
If you want to lock up the front when you will definitely need another cable. I've been able to lock both my frame and rear wheel together with this lock.
2178191
Either depending on what size the front and rear require. We used four for both front and rear in our vehicle.
1779275
It can hold 2 on each side as long as you do not need to see the back sides.
1396610
The cheepest is one but you need to support the two free ends of the box with wood underneath each end to the same hight of the clamp. Two clamps becomes easier with the same concept above but having four clamps is the ideal situation for every operation alike as you see the final situation of your box in all aspects before final fixing.
950614
It is not a three position switch but a two position switch! It will only slide right and back to center. It's normal function is to be in the center and there it allows automatic on/off and manual on/off. If you slide it to the right, it will lock the switch off. You do this if you temporarily want to suspend automatic on/off.
2077550
If you have wheels on the front, you only need 2. If you have no wheels, you'd need 4.
1302152
Just the front two. The back two are fixed. It is still very maneuverable, however.
1737696
Tighten it down. It spins when it's loose, but will stay at any angle you set once it's clamped tightly
429761
At least two locking lugs, and the locking recesses are very close together so there isn't a lot of backpedaling slop. It is a very solid piece. I thrash and break junky hubs in a few rides, this one is a GREAT value.
742649
Not much needed for attachment, as the screws are at the top, but for stability I'd say at least 5 inches of both front and back so it can be jammed on between them.I had about 6 in the front and 5 in the back and I had to pound it on.
1231228
You only need the long one. Take the front tire off and lock it at the back. The long one is good if you have a weird shape frame that takes up a lot of space
687555
it's set up for one. Depending on the the weight of your screens. You might get away with two. It is the sturdiest arm I've every seen.
1122329
You will need to have at least 3 inches of bare post to attach to. As long as you have the space to clamp it it should be fine. Consider what will happen when the suspension compresses and whether it will cause something to hit or rub.
2022912
I really don't know. I have always used 4 and never thought about using 2. I don't know why you could use just 2 though.