Does it have a rachet on the back of the helmet to tighten it on my skull so it doesn't move?
196469
Yes it does. There is some limits. That's why you have to get the correct size.
912397
Yeah, mine came with the head band. It works fine. It is not the twist type where you can twist it, to tighten it but I set it when I first got it and it it's worked fine for me for 9 or ten months since I got it. Hope this helps.
1166608
It depends on how you mount it. It comes with some adhesive bases that can be stuck onto the helmet. Short answer is yes.
1153689
Yes, there is a small bolt in the middle of the head. Tighten it to reduce the flow. I have tuned my decently well for my narrow, long strip.
167197
It does have a hole that looks like it's used for a clamp on the back of the head, but not in the neck. Looks like it is meant to be mounted prone on it's flat back.
2284984
It has buttons, it still shifts a bit. I haven't found one that stays in place.
398939
Hi! For me, it did not. It held my head straight up. No backwards or forwards pushing
1854205
If you are talking about a hard hat, It slips. I had to hold it in place with a pair of cable ties. I didn't buy it to ride my bike.
1433394
No....it does not. I put a little ball of tape in the end. That stopped the bolt from going in to far and held it in place.
835985
Yes it has a single, allen head, bolt to lock it down to the exact location you need. Makes it able to adjust to some unique angles to allow for perfect alignment.
1602323
It comes with a head strap, but it wouldn't fit over my bike helmet. It's meant for wearing it directly on your head. Here is a link for the a helmet mount MagicShine Helmet Mount Kit
60698
It has a ratchet movement although it is very subtle. If you press down it rolls freely.
1513940
No, it does not. It is too big, so save your money. You can get it tightened and loosened quite easily with your hands.
421968
It does not but the arm is quite tight and I've never had a problem with it moving on me.
1811403
It requires something to attach to (through the vents of a helmet). You can get a head band mount instead if not using a helmet
1545111
Yes, definitely. The head piece pivots off a large Allen head screw axle. You can tighten the Allen screw and also the two locking screws on top that can be hand tightened. It's a redundant system and very sturdy. It's one of the best features.
1896032
The head is secured with a magnet. I haven't had any problems with it coming loose.