hump on the back of suits for safety or areodynamics?

[kermita]

What is the general consensus on what the purpose of the hump on the back of leathers are?

Aerodynamics?

Safety?

Both?

[nefarious]

aero and vent not going to do a thing in the way of safety

[Pittenger5]

Aerodynamics Im betting.
Plus the fast guys have camelbacks built into them for hydration purposes.

Plus they make you look really cool.

[Doc]

It is to look like Rossi!

[Pittenger5]

aero and vent not going to do a thing in the way of safety

The shape of it might help the head from slamming back I would think, dunno if thats designed that way, but I think itd help.

[Kitt]

The shape of it might help the head from slamming back I would think, dunno if thats designed that way, but I think itd help.

you're right... mine interfere's with the helmet when my head is pointed too far up. Wehether by design or not, that will help resist whiplash or other neck injuries.

[The Snowman]

Plus they make you look really cool.

well, some people.

[Crash Dummy Denno]

from what ive been told they are more to prevent whiplash than aero

[Awesome]

The shape of it might help the head from slamming back I would think, dunno if thats designed that way, but I think itd help.

For aerodynamics, but they do help in the saftey department too. It's a big pad at the top of your spine and it could possibly prevent your head from bending back, mine does obstruct mine just in stretching.

[OreoGaborio]

Both.... I forget who was telling me this (think it was Wingerdor)... he said some dude he knows was testing different shaped humps using velcro... Well somewhere around 160mph the hump tore off & the sudden low pressure behind his helmet made it feel like someone yanked his head back.

So depending on what shape & how big it is, it can help w/ bike/rider aerodynamics, safety AND it will also reduce neck strain at high speeds as it helps reduce the low pressure area behind your head (an additional aerodynamic benefit).

[LuvDog]

According to Barnacle Bill, he thinks the primary purpose is safety. He doesn't claim any aero advantage.

[nefarious]

"MotoGP profile, ventilated back hump for improved aerodynamics and ventilation performace."

While it may keep your head from tilting fully back while riding, its only leather around molded or padded into the shape its in and isnt going to do much in a real crash.

Where are all the vanson guys?

[Kitt]

"MotoGP profile, ventilated back hump for improved aerodynamics and ventilation performace."

While it may keep your head from tilting fully back while riding, its only leather around molded or padded into the shape its in and isnt going to do much in a real crash.

Where are all the vanson guys?

if your head gets snapped back hard enough to crush a speed hump, it's probably going to end up rolling across the track anyway.

[Pittenger5]

While it may keep your head from tilting fully back while riding, its only leather around molded or padded into the shape its in and isnt going to do much in a real crash.

If you fall off a ladder, what do you want under you? Nothing or a pillow?
Sure its not gonna do EVERYTHING, but at the very least its going to help a little bit.

[nefarious]

if your head gets snapped back hard enough to crush a speed hump, it's probably going to end up rolling across the track anyway.

By this logic we should save money and just race in a pair of basketball sneakers.

If you fall off a ladder, what do you want under you? Nothing or a pillow?
Sure its not gonna do EVERYTHING, but at the very least its going to help a little bit.

The amount of mitigation the speed hump / pillow has in a crash is negligible. And I doubt many manufactures would dare label it as a safety device.

[Kitt]

By this logic we should save money and just race in a pair of basketball sneakers.

what's this we thing? you race?


ummm... how?

if you get hit in the head hard enough to snap it back hard and fast enough to crush the speed hump, whiplash is the least of your worries. there's a balance of gear to protect from ridiculous hypothetical situations, and something that's wearable and functional designed for typical and common wear and tear.


It looks like you came on here because you have too much time on your hands, you're getting several opinions and thoughts on them, yet trying to discount anything you didn't already think. haha.

And I doubt many manufactures would dare label it as a safety device.

most manufacturers don't want to mislead people into thinking a speedhump replaces the function/need for a back protector.

[Paul_E_D]

I think it performs both aero and safety functions. Just by having something built up around your delicate neck, it will keep that part further from harm in a slide/tumble. I doubt it performms like a Leat neck brace would, but it's certainly going to protect you in some situations.

[nefarious]

what's this we thing? you race?


ummm... how?

if you get hit in the head hard enough to snap it back hard and fast enough to crush the speed hump, whiplash is the least of your worries. there's a balance of gear to protect from ridiculous hypothetical situations, and something that's wearable and functional designed for typical and common wear and tear.


It looks like you came on here because you have too much time on your hands, you're getting several opinions and thoughts on them, yet trying to discount anything you didn't already think. haha.



most manufacturers don't want to mislead people into thinking a speedhump replaces the function/need for a back protector.

My qoute wasnt an opinion it was direct from a manufacturer. Secondly "we" are being a little nit picky hear about "we" yes I have my race lic. am I as fast our as cool as you... most likely not, but crashing while racing around NHMS or while racing around the streets, it really makes no diffrence.

You get your head moving fast enough for even just whiplash, you can bet the aero hump is going to give way, its just no way near as rigid as say a cars "headrest" which is actually designed to reduce whiplash.

[Doc]

or while racing around the streets,

You race on the street!

[nefarious]

You race on the street!

Nope I don't ride at all. I just keep bikes in my garage. Please see the $35,000 a lap thread

[Doc]

Nope I don't ride at all. I just keep bikes in my garage. Please see the $35,000 a lap thread

I may have to start doing that.

[Awesome]

Hi again Kim, the answer is both. Tested and proven with my personal experience.

[Pittenger5]

You get your head moving fast enough for even just whiplash, you can bet the aero hump is going to give way, its just no way near as rigid as say a cars "headrest" which is actually designed to reduce whiplash.

I still stick by my pillow analogy. If youre moving fast enough it wont save you, but would YOU rather land on a pillow or nothing? Exactly.
And things ARENT designed for safety can help. If you start drowning in the middle of the lake, and the only thing around is an inflatable tube, which specifically say on them, not for lifesaving purposes, are you going to grab it or not? Exactly.

[nefarious]

What is the general consensus on what the purpose of the hump on the back of leathers are?

[ThisBitch]

That its both for aerodynamics and (probably to a lesser degree) safety.


Unless you ladies want to keep fighting about it