uncrx2003

Thoughts on this product for cycling. Claims to reduce impact with this thing on. Haven't seen this discuss on here before. Looks interesting to me. It's relatively cheap comparing to all the other stuff in cycling.

https://www.geldefender.com/home.html

surgeonstone

Can't speak of how effective it is but it looks like it would be very under ventilated for cycling and quite hot.

jimc101

Looks great for a sport where you expect to take a hit, if you look at all their site, all the sports they show already use a hardshell helmet, for cycling, do you really go out looking to come off and impact your head?

Looigi

I'm not sure I follow your logic. I wear a helmet on the bike because I expect to take a hit. I'm not looking to, and try to avoid it, but I expect it will happen. If I didn't expect it would happen, I wouldn't wear a helmet.

cleansheet

Doubt it. It still doesn't prevent the brain from moving in the skull. Figure out a way to de-accelarate the brain, and you win.

jimc101

What I meant was, looking a the sports shown on the site, these are ones where getting hit, having a impact is part of the sport on a regular basis, Football (not soccer), baseball & skateboarding, all these use hardshell helmets, and getting hit in the head will at some point happen.

For cycling, apart from BMX and DH MTB, most helmets are expanded polystyrene with an in-mould plastic outer, designed to break, absorbing impact in a crash, we also don't go out on a ride expecting to have an impact or to crash. Crashes do happen, but infrequently, my last on the road which broke my helmet / trip in an ambulance was about 5 years ago 25000 miles ago, yes crashes do happen, but thankfully not frequently. Not sure I would be riding if I expected to get hit in the head regularly, or that many others would

uncrx2003

Well, I think the point is when it does happen, we try to use anything we can to decrease the impact of the collision. You're right that some other sports might benefit it more due to frequent head contact (hockey, football, etc) but I thing it could be very beneficial in a cycling accident that involves head trauma. Assuming that their data is true. I see enough patients that come in with head trauma here in the hospital. Usually from car vs bike. When a car hit you at 50 mph, there not many things that can save you at that point but it could make a big difference at lower speed impact.

About the cooling issue, they do have data for that aspect as well.

gsa103

Their cooling data is a worthless steaming pile of poo for cycling. situation they check is with a foam head in an exterior oven and look at the temperature rise of the foam head. They show that the foam head stays cooler, or effectively that the barrier does a good job insulating EXTERIOR heat sources.

In cycling, the situation is completely reversed. Your head is radiating a huge amount of heat which is getting transferred to the cooler outside air. The best way to imagine the rest is to completely reverse the results, and you might expect a 30+ deg temperature rise. Needless to say, it looks about ideal on a cold winter day.

Their impact results for cycling aren't super compelling either. As other people have pointed out, cycling is a little different in that you're looking at singular impacts compared with repetitive type impacts.

halfspeed

You win the thread.

datlas 

I thought, from the title, that this would be an op-ed in favor of GU.